sklearn练习1.ipynb

{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [],
   "source": [
    "from sklearn import tree\n",
    "from sklearn.datasets import load_wine\n",
    "from sklearn.model_selection import train_test_split"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [],
   "source": [
    "wine=load_wine()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(178, 13)"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wine.data.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
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       "       2, 2])"
      ]
     },
     "execution_count": 7,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wine.target"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "      <th>0</th>\n",
       "      <td>14.23</td>\n",
       "      <td>1.71</td>\n",
       "      <td>2.43</td>\n",
       "      <td>15.6</td>\n",
       "      <td>127.0</td>\n",
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       "      <td>13.20</td>\n",
       "      <td>1.78</td>\n",
       "      <td>2.14</td>\n",
       "      <td>11.2</td>\n",
       "      <td>100.0</td>\n",
       "      <td>2.65</td>\n",
       "      <td>2.76</td>\n",
       "      <td>0.26</td>\n",
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       "      <td>4.38</td>\n",
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       "      <th>2</th>\n",
       "      <td>13.16</td>\n",
       "      <td>2.36</td>\n",
       "      <td>2.67</td>\n",
       "      <td>18.6</td>\n",
       "      <td>101.0</td>\n",
       "      <td>2.80</td>\n",
       "      <td>3.24</td>\n",
       "      <td>0.30</td>\n",
       "      <td>2.81</td>\n",
       "      <td>5.68</td>\n",
       "      <td>1.03</td>\n",
       "      <td>3.17</td>\n",
       "      <td>1185.0</td>\n",
       "      <td>0</td>\n",
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       "      <th>3</th>\n",
       "      <td>14.37</td>\n",
       "      <td>1.95</td>\n",
       "      <td>2.50</td>\n",
       "      <td>16.8</td>\n",
       "      <td>113.0</td>\n",
       "      <td>3.85</td>\n",
       "      <td>3.49</td>\n",
       "      <td>0.24</td>\n",
       "      <td>2.18</td>\n",
       "      <td>7.80</td>\n",
       "      <td>0.86</td>\n",
       "      <td>3.45</td>\n",
       "      <td>1480.0</td>\n",
       "      <td>0</td>\n",
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       "      <th>4</th>\n",
       "      <td>13.24</td>\n",
       "      <td>2.59</td>\n",
       "      <td>2.87</td>\n",
       "      <td>21.0</td>\n",
       "      <td>118.0</td>\n",
       "      <td>2.80</td>\n",
       "      <td>2.69</td>\n",
       "      <td>0.39</td>\n",
       "      <td>1.82</td>\n",
       "      <td>4.32</td>\n",
       "      <td>1.04</td>\n",
       "      <td>2.93</td>\n",
       "      <td>735.0</td>\n",
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       "      <th>173</th>\n",
       "      <td>13.71</td>\n",
       "      <td>5.65</td>\n",
       "      <td>2.45</td>\n",
       "      <td>20.5</td>\n",
       "      <td>95.0</td>\n",
       "      <td>1.68</td>\n",
       "      <td>0.61</td>\n",
       "      <td>0.52</td>\n",
       "      <td>1.06</td>\n",
       "      <td>7.70</td>\n",
       "      <td>0.64</td>\n",
       "      <td>1.74</td>\n",
       "      <td>740.0</td>\n",
       "      <td>2</td>\n",
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       "      <th>174</th>\n",
       "      <td>13.40</td>\n",
       "      <td>3.91</td>\n",
       "      <td>2.48</td>\n",
       "      <td>23.0</td>\n",
       "      <td>102.0</td>\n",
       "      <td>1.80</td>\n",
       "      <td>0.75</td>\n",
       "      <td>0.43</td>\n",
       "      <td>1.41</td>\n",
       "      <td>7.30</td>\n",
       "      <td>0.70</td>\n",
       "      <td>1.56</td>\n",
       "      <td>750.0</td>\n",
       "      <td>2</td>\n",
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       "    <tr>\n",
       "      <th>175</th>\n",
       "      <td>13.27</td>\n",
       "      <td>4.28</td>\n",
       "      <td>2.26</td>\n",
       "      <td>20.0</td>\n",
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       "      <td>1.59</td>\n",
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       "      <td>2</td>\n",
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       "    <tr>\n",
       "      <th>176</th>\n",
       "      <td>13.17</td>\n",
       "      <td>2.59</td>\n",
       "      <td>2.37</td>\n",
       "      <td>20.0</td>\n",
       "      <td>120.0</td>\n",
       "      <td>1.65</td>\n",
       "      <td>0.68</td>\n",
       "      <td>0.53</td>\n",
       "      <td>1.46</td>\n",
       "      <td>9.30</td>\n",
       "      <td>0.60</td>\n",
       "      <td>1.62</td>\n",
       "      <td>840.0</td>\n",
       "      <td>2</td>\n",
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       "      <th>177</th>\n",
       "      <td>14.13</td>\n",
       "      <td>4.10</td>\n",
       "      <td>2.74</td>\n",
       "      <td>24.5</td>\n",
       "      <td>96.0</td>\n",
       "      <td>2.05</td>\n",
       "      <td>0.76</td>\n",
       "      <td>0.56</td>\n",
       "      <td>1.35</td>\n",
       "      <td>9.20</td>\n",
       "      <td>0.61</td>\n",
       "      <td>1.60</td>\n",
       "      <td>560.0</td>\n",
       "      <td>2</td>\n",
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       "        0     1     2     3      4     5     6     7     8      9     10  \\\n",
       "0    14.23  1.71  2.43  15.6  127.0  2.80  3.06  0.28  2.29   5.64  1.04   \n",
       "1    13.20  1.78  2.14  11.2  100.0  2.65  2.76  0.26  1.28   4.38  1.05   \n",
       "2    13.16  2.36  2.67  18.6  101.0  2.80  3.24  0.30  2.81   5.68  1.03   \n",
       "3    14.37  1.95  2.50  16.8  113.0  3.85  3.49  0.24  2.18   7.80  0.86   \n",
       "4    13.24  2.59  2.87  21.0  118.0  2.80  2.69  0.39  1.82   4.32  1.04   \n",
       "..     ...   ...   ...   ...    ...   ...   ...   ...   ...    ...   ...   \n",
       "173  13.71  5.65  2.45  20.5   95.0  1.68  0.61  0.52  1.06   7.70  0.64   \n",
       "174  13.40  3.91  2.48  23.0  102.0  1.80  0.75  0.43  1.41   7.30  0.70   \n",
       "175  13.27  4.28  2.26  20.0  120.0  1.59  0.69  0.43  1.35  10.20  0.59   \n",
       "176  13.17  2.59  2.37  20.0  120.0  1.65  0.68  0.53  1.46   9.30  0.60   \n",
       "177  14.13  4.10  2.74  24.5   96.0  2.05  0.76  0.56  1.35   9.20  0.61   \n",
       "\n",
       "       11      12  0   \n",
       "0    3.92  1065.0   0  \n",
       "1    3.40  1050.0   0  \n",
       "2    3.17  1185.0   0  \n",
       "3    3.45  1480.0   0  \n",
       "4    2.93   735.0   0  \n",
       "..    ...     ...  ..  \n",
       "173  1.74   740.0   2  \n",
       "174  1.56   750.0   2  \n",
       "175  1.56   835.0   2  \n",
       "176  1.62   840.0   2  \n",
       "177  1.60   560.0   2  \n",
       "\n",
       "[178 rows x 14 columns]"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import pandas as pd\n",
    "pd.concat([pd.DataFrame(wine.data),pd.DataFrame(wine.target)],axis=1)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "['alcohol',\n",
       " 'malic_acid',\n",
       " 'ash',\n",
       " 'alcalinity_of_ash',\n",
       " 'magnesium',\n",
       " 'total_phenols',\n",
       " 'flavanoids',\n",
       " 'nonflavanoid_phenols',\n",
       " 'proanthocyanins',\n",
       " 'color_intensity',\n",
       " 'hue',\n",
       " 'od280/od315_of_diluted_wines',\n",
       " 'proline']"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wine.feature_names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array(['class_0', 'class_1', 'class_2'], dtype='<U7')"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "wine.target_names"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [],
   "source": [
    "Xtrain,Xtest,Ytrain,Ytest=train_test_split(wine.data,wine.target,test_size=0.3)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 12,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([[1.221e+01, 1.190e+00, 1.750e+00, ..., 1.280e+00, 3.070e+00,\n",
       "        7.180e+02],\n",
       "       [1.369e+01, 3.260e+00, 2.540e+00, ..., 9.600e-01, 1.820e+00,\n",
       "        6.800e+02],\n",
       "       [1.272e+01, 1.810e+00, 2.200e+00, ..., 1.160e+00, 3.140e+00,\n",
       "        7.140e+02],\n",
       "       ...,\n",
       "       [1.323e+01, 3.300e+00, 2.280e+00, ..., 5.600e-01, 1.510e+00,\n",
       "        6.750e+02],\n",
       "       [1.410e+01, 2.020e+00, 2.400e+00, ..., 1.070e+00, 2.750e+00,\n",
       "        1.060e+03],\n",
       "       [1.367e+01, 1.250e+00, 1.920e+00, ..., 1.230e+00, 2.460e+00,\n",
       "        6.300e+02]])"
      ]
     },
     "execution_count": 12,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Xtrain"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 13,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(124, 13)"
      ]
     },
     "execution_count": 13,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Xtrain.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "(54, 13)"
      ]
     },
     "execution_count": 14,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "Xtest.shape"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "metadata": {},
   "outputs": [],
   "source": [
    "clf=tree.DecisionTreeClassifier(criterion=\"entropy\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "metadata": {},
   "outputs": [],
   "source": [
    "clf=clf.fit(Xtrain,Ytrain)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "metadata": {},
   "outputs": [],
   "source": [
    "score=clf.score(Xtest,Ytest)#返回预测的准确度"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0.9444444444444444"
      ]
     },
     "execution_count": 19,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "score"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [],
   "source": [
    "from sklearn import tree\n",
    "from sklearn.datasets import load_wine\n",
    "from sklearn.model_selection import train_test_split\n",
    "clf=tree.DecisionTreeClassifier(criterion=\"entropy\")\n",
    "clf=clf.fit(Xtrain,Ytrain)\n",
    "score=clf.score(Xtest,Ytest)#返回预测的准确度\n",
    "import graphviz"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 27,
   "metadata": {},
   "outputs": [
    {
     "data": {
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       "<text text-anchor=\"middle\" x=\"297.5\" y=\"-528.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">类黄酮 &lt;= 1.575</text>\r\n",
       "<text text-anchor=\"middle\" x=\"297.5\" y=\"-513.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 1.576</text>\r\n",
       "<text text-anchor=\"middle\" x=\"297.5\" y=\"-498.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 124</text>\r\n",
       "<text text-anchor=\"middle\" x=\"297.5\" y=\"-483.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [38, 48, 38]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"297.5\" y=\"-468.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
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       "<g id=\"node2\" class=\"node\"><title>1</title>\r\n",
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       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">颜色强度 &lt;= 3.825</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.705</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 47</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-364.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 9, 38]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-349.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
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       "<!-- 0&#45;&gt;1 -->\r\n",
       "<g id=\"edge1\" class=\"edge\"><title>0&#45;&gt;1</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M262.112,-460.907C254.2,-451.832 245.734,-442.121 237.581,-432.769\"/>\r\n",
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       "<text text-anchor=\"middle\" x=\"229.118\" y=\"-446.262\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">True</text>\r\n",
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       "<!-- 6 -->\r\n",
       "<g id=\"node7\" class=\"node\"><title>6</title>\r\n",
       "<path fill=\"#fafefc\" stroke=\"black\" d=\"M452,-425C452,-425 347,-425 347,-425 341,-425 335,-419 335,-413 335,-413 335,-354 335,-354 335,-348 341,-342 347,-342 347,-342 452,-342 452,-342 458,-342 464,-348 464,-354 464,-354 464,-413 464,-413 464,-419 458,-425 452,-425\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">脯氨酸 &lt;= 724.5</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 1.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 77</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-364.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [38, 39, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-349.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 0&#45;&gt;6 -->\r\n",
       "<g id=\"edge6\" class=\"edge\"><title>0&#45;&gt;6</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M332.888,-460.907C340.8,-451.832 349.266,-442.121 357.419,-432.769\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"360.241,-434.859 364.174,-425.021 354.965,-430.259 360.241,-434.859\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"365.882\" y=\"-446.262\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">False</text>\r\n",
       "</g>\r\n",
       "<!-- 2 -->\r\n",
       "<g id=\"node3\" class=\"node\"><title>2</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M105,-298.5C105,-298.5 16,-298.5 16,-298.5 10,-298.5 4,-292.5 4,-286.5 4,-286.5 4,-242.5 4,-242.5 4,-236.5 10,-230.5 16,-230.5 16,-230.5 105,-230.5 105,-230.5 111,-230.5 117,-236.5 117,-242.5 117,-242.5 117,-286.5 117,-286.5 117,-292.5 111,-298.5 105,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 8</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-253.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 8, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-238.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 1&#45;&gt;2 -->\r\n",
       "<g id=\"edge2\" class=\"edge\"><title>1&#45;&gt;2</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M148.662,-341.907C135.039,-330.101 120.173,-317.217 106.596,-305.45\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"108.619,-302.571 98.7695,-298.667 104.034,-307.861 108.619,-302.571\"/>\r\n",
       "</g>\r\n",
       "<!-- 3 -->\r\n",
       "<g id=\"node4\" class=\"node\"><title>3</title>\r\n",
       "<path fill=\"#843ee6\" stroke=\"black\" d=\"M244,-306C244,-306 147,-306 147,-306 141,-306 135,-300 135,-294 135,-294 135,-235 135,-235 135,-229 141,-223 147,-223 147,-223 244,-223 244,-223 250,-223 256,-229 256,-235 256,-235 256,-294 256,-294 256,-300 250,-306 244,-306\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-290.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">色调 &lt;= 0.97</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-275.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.172</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-260.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 39</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-245.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 1, 38]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-230.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 1&#45;&gt;3 -->\r\n",
       "<g id=\"edge3\" class=\"edge\"><title>1&#45;&gt;3</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M195.5,-341.907C195.5,-333.649 195.5,-324.864 195.5,-316.302\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"199,-316.021 195.5,-306.021 192,-316.021 199,-316.021\"/>\r\n",
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       "<!-- 4 -->\r\n",
       "<g id=\"node5\" class=\"node\"><title>4</title>\r\n",
       "<path fill=\"#8139e5\" stroke=\"black\" d=\"M109,-179.5C109,-179.5 12,-179.5 12,-179.5 6,-179.5 0,-173.5 0,-167.5 0,-167.5 0,-123.5 0,-123.5 0,-117.5 6,-111.5 12,-111.5 12,-111.5 109,-111.5 109,-111.5 115,-111.5 121,-117.5 121,-123.5 121,-123.5 121,-167.5 121,-167.5 121,-173.5 115,-179.5 109,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 38</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 0, 38]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"60.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 3&#45;&gt;4 -->\r\n",
       "<g id=\"edge4\" class=\"edge\"><title>3&#45;&gt;4</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M148.662,-222.907C135.039,-211.101 120.173,-198.217 106.596,-186.45\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"108.619,-183.571 98.7695,-179.667 104.034,-188.861 108.619,-183.571\"/>\r\n",
       "</g>\r\n",
       "<!-- 5 -->\r\n",
       "<g id=\"node6\" class=\"node\"><title>5</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M240,-179.5C240,-179.5 151,-179.5 151,-179.5 145,-179.5 139,-173.5 139,-167.5 139,-167.5 139,-123.5 139,-123.5 139,-117.5 145,-111.5 151,-111.5 151,-111.5 240,-111.5 240,-111.5 246,-111.5 252,-117.5 252,-123.5 252,-123.5 252,-167.5 252,-167.5 252,-173.5 246,-179.5 240,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 1</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 1, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"195.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 3&#45;&gt;5 -->\r\n",
       "<g id=\"edge5\" class=\"edge\"><title>3&#45;&gt;5</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M195.5,-222.907C195.5,-212.204 195.5,-200.615 195.5,-189.776\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"199,-189.667 195.5,-179.667 192,-189.667 199,-189.667\"/>\r\n",
       "</g>\r\n",
       "<!-- 7 -->\r\n",
       "<g id=\"node8\" class=\"node\"><title>7</title>\r\n",
       "<path fill=\"#3fe685\" stroke=\"black\" d=\"M451.5,-306C451.5,-306 347.5,-306 347.5,-306 341.5,-306 335.5,-300 335.5,-294 335.5,-294 335.5,-235 335.5,-235 335.5,-229 341.5,-223 347.5,-223 347.5,-223 451.5,-223 451.5,-223 457.5,-223 463.5,-229 463.5,-235 463.5,-235 463.5,-294 463.5,-294 463.5,-300 457.5,-306 451.5,-306\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-290.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">灰的碱性 &lt;= 17.75</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-275.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.183</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-260.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 36</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-245.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [1, 35, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"399.5\" y=\"-230.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 6&#45;&gt;7 -->\r\n",
       "<g id=\"edge7\" class=\"edge\"><title>6&#45;&gt;7</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M399.5,-341.907C399.5,-333.649 399.5,-324.864 399.5,-316.302\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"403,-316.021 399.5,-306.021 396,-316.021 403,-316.021\"/>\r\n",
       "</g>\r\n",
       "<!-- 12 -->\r\n",
       "<g id=\"node13\" class=\"node\"><title>12</title>\r\n",
       "<path fill=\"#e88f4e\" stroke=\"black\" d=\"M649,-306C649,-306 552,-306 552,-306 546,-306 540,-300 540,-294 540,-294 540,-235 540,-235 540,-229 546,-223 552,-223 552,-223 649,-223 649,-223 655,-223 661,-229 661,-235 661,-235 661,-294 661,-294 661,-300 655,-306 649,-306\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-290.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">颜色强度 &lt;= 3.49</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-275.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.461</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-260.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 41</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-245.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [37, 4, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-230.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
       "</g>\r\n",
       "<!-- 6&#45;&gt;12 -->\r\n",
       "<g id=\"edge12\" class=\"edge\"><title>6&#45;&gt;12</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M464.204,-344.836C485.487,-332.448 509.233,-318.626 530.866,-306.033\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"532.794,-308.961 539.676,-300.905 529.272,-302.911 532.794,-308.961\"/>\r\n",
       "</g>\r\n",
       "<!-- 8 -->\r\n",
       "<g id=\"node9\" class=\"node\"><title>8</title>\r\n",
       "<path fill=\"#9cf2c0\" stroke=\"black\" d=\"M374.5,-187C374.5,-187 282.5,-187 282.5,-187 276.5,-187 270.5,-181 270.5,-175 270.5,-175 270.5,-116 270.5,-116 270.5,-110 276.5,-104 282.5,-104 282.5,-104 374.5,-104 374.5,-104 380.5,-104 386.5,-110 386.5,-116 386.5,-116 386.5,-175 386.5,-175 386.5,-181 380.5,-187 374.5,-187\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"328.5\" y=\"-171.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">总酚 &lt;= 2.595</text>\r\n",
       "<text text-anchor=\"middle\" x=\"328.5\" y=\"-156.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.918</text>\r\n",
       "<text text-anchor=\"middle\" x=\"328.5\" y=\"-141.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 3</text>\r\n",
       "<text text-anchor=\"middle\" x=\"328.5\" y=\"-126.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [1, 2, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"328.5\" y=\"-111.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 7&#45;&gt;8 -->\r\n",
       "<g id=\"edge8\" class=\"edge\"><title>7&#45;&gt;8</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M374.867,-222.907C369.525,-214.105 363.82,-204.703 358.303,-195.612\"/>\r\n",
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       "</g>\r\n",
       "<!-- 11 -->\r\n",
       "<g id=\"node12\" class=\"node\"><title>11</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M514,-179.5C514,-179.5 417,-179.5 417,-179.5 411,-179.5 405,-173.5 405,-167.5 405,-167.5 405,-123.5 405,-123.5 405,-117.5 411,-111.5 417,-111.5 417,-111.5 514,-111.5 514,-111.5 520,-111.5 526,-117.5 526,-123.5 526,-123.5 526,-167.5 526,-167.5 526,-173.5 520,-179.5 514,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"465.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"465.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 33</text>\r\n",
       "<text text-anchor=\"middle\" x=\"465.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 33, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"465.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 7&#45;&gt;11 -->\r\n",
       "<g id=\"edge11\" class=\"edge\"><title>7&#45;&gt;11</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M422.398,-222.907C428.685,-211.763 435.513,-199.658 441.842,-188.439\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"444.926,-190.096 446.79,-179.667 438.829,-186.657 444.926,-190.096\"/>\r\n",
       "</g>\r\n",
       "<!-- 9 -->\r\n",
       "<g id=\"node10\" class=\"node\"><title>9</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M307,-68C307,-68 218,-68 218,-68 212,-68 206,-62 206,-56 206,-56 206,-12 206,-12 206,-6 212,-0 218,-0 218,-0 307,-0 307,-0 313,-0 319,-6 319,-12 319,-12 319,-56 319,-56 319,-62 313,-68 307,-68\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"262.5\" y=\"-52.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"262.5\" y=\"-37.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 2</text>\r\n",
       "<text text-anchor=\"middle\" x=\"262.5\" y=\"-22.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 2, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"262.5\" y=\"-7.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 8&#45;&gt;9 -->\r\n",
       "<g id=\"edge9\" class=\"edge\"><title>8&#45;&gt;9</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M303.924,-103.726C298.646,-94.9703 293.061,-85.7032 287.758,-76.9051\"/>\r\n",
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       "<!-- 10 -->\r\n",
       "<g id=\"node11\" class=\"node\"><title>10</title>\r\n",
       "<path fill=\"#e58139\" stroke=\"black\" d=\"M438,-68C438,-68 349,-68 349,-68 343,-68 337,-62 337,-56 337,-56 337,-12 337,-12 337,-6 343,-0 349,-0 349,-0 438,-0 438,-0 444,-0 450,-6 450,-12 450,-12 450,-56 450,-56 450,-62 444,-68 438,-68\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"393.5\" y=\"-52.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"393.5\" y=\"-37.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 1</text>\r\n",
       "<text text-anchor=\"middle\" x=\"393.5\" y=\"-22.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [1, 0, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"393.5\" y=\"-7.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
       "</g>\r\n",
       "<!-- 8&#45;&gt;10 -->\r\n",
       "<g id=\"edge10\" class=\"edge\"><title>8&#45;&gt;10</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M352.704,-103.726C357.901,-94.9703 363.402,-85.7032 368.625,-76.9051\"/>\r\n",
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       "<!-- 13 -->\r\n",
       "<g id=\"node14\" class=\"node\"><title>13</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M645,-179.5C645,-179.5 556,-179.5 556,-179.5 550,-179.5 544,-173.5 544,-167.5 544,-167.5 544,-123.5 544,-123.5 544,-117.5 550,-111.5 556,-111.5 556,-111.5 645,-111.5 645,-111.5 651,-111.5 657,-117.5 657,-123.5 657,-123.5 657,-167.5 657,-167.5 657,-173.5 651,-179.5 645,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 4</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 4, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"600.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
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       "<!-- 12&#45;&gt;13 -->\r\n",
       "<g id=\"edge13\" class=\"edge\"><title>12&#45;&gt;13</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M600.5,-222.907C600.5,-212.204 600.5,-200.615 600.5,-189.776\"/>\r\n",
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       "</g>\r\n",
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       "<text text-anchor=\"middle\" x=\"735.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
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       "</svg>\r\n"
      ],
      "text/plain": [
       "<graphviz.files.Source at 0x26768601070>"
      ]
     },
     "execution_count": 27,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "feature_name=['酒精','苹果酸','灰','灰的碱性','镁','总酚','类黄酮','非黄烷类酚类','花青素','颜色强度','色调','od280/od315稀释葡萄酒','脯氨酸']\n",
    "dot_data=tree.export_graphviz(clf,feature_names=feature_name,\n",
    "                              class_names=[\"琴酒\",\"雪梨\",\"贝尔摩德\"],\n",
    "                              filled=True,\n",
    "                              rounded=True\n",
    "                             )\n",
    "graph=graphviz.Source(dot_data)\n",
    "graph"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 28,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "array([0.        , 0.        , 0.        , 0.01963927, 0.        ,\n",
       "       0.01409873, 0.43651006, 0.        , 0.        , 0.23191199,\n",
       "       0.03433702, 0.        , 0.26350292])"
      ]
     },
     "execution_count": 28,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "clf.feature_importances_"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 30,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[('酒精', 0.0),\n",
       " ('苹果酸', 0.0),\n",
       " ('灰', 0.0),\n",
       " ('灰的碱性', 0.019639272273873028),\n",
       " ('镁', 0.0),\n",
       " ('总酚', 0.014098732940305135),\n",
       " ('类黄酮', 0.43651006393656233),\n",
       " ('非黄烷类酚类', 0.0),\n",
       " ('花青素', 0.0),\n",
       " ('颜色强度', 0.23191199067805507),\n",
       " ('色调', 0.034337016343750026),\n",
       " ('od280/od315稀释葡萄酒', 0.0),\n",
       " ('脯氨酸', 0.2635029238274544)]"
      ]
     },
     "execution_count": 30,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "[*zip(feature_name,clf.feature_importances_)]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 42,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "0.9444444444444444"
      ]
     },
     "execution_count": 42,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "clf=tree.DecisionTreeClassifier(criterion=\"entropy\",random_state=30\n",
    "                               ,splitter=\"random\"\n",
    "                               )\n",
    "clf=clf.fit(Xtrain,Ytrain)\n",
    "score=clf.score(Xtest,Ytest)#返回预测的准确度\n",
    "score"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 43,
   "metadata": {},
   "outputs": [
    {
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       "<!-- 0 -->\r\n",
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       "<text text-anchor=\"middle\" x=\"803.5\" y=\"-766.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">类黄酮 &lt;= 2.154</text>\r\n",
       "<text text-anchor=\"middle\" x=\"803.5\" y=\"-751.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 1.576</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"674.5\" y=\"-647.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">od280/od315稀释葡萄酒 &lt;= 2.173</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-647.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">脯氨酸 &lt;= 1020.847</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-632.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.929</text>\r\n",
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       "<g id=\"node3\" class=\"node\"><title>2</title>\r\n",
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       "<text text-anchor=\"middle\" x=\"441.5\" y=\"-528.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">色调 &lt;= 0.95</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"441.5\" y=\"-498.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 43</text>\r\n",
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       "<g id=\"edge2\" class=\"edge\"><title>1&#45;&gt;2</title>\r\n",
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       "<text text-anchor=\"middle\" x=\"674.5\" y=\"-528.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">色调 &lt;= 0.821</text>\r\n",
       "<text text-anchor=\"middle\" x=\"674.5\" y=\"-513.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.426</text>\r\n",
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       "<g id=\"node4\" class=\"node\"><title>3</title>\r\n",
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       "<text text-anchor=\"middle\" x=\"197.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">od280/od315稀释葡萄酒 &lt;= 1.881</text>\r\n",
       "<text text-anchor=\"middle\" x=\"197.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.303</text>\r\n",
       "<text text-anchor=\"middle\" x=\"197.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 37</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"441.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">镁 &lt;= 106.619</text>\r\n",
       "<text text-anchor=\"middle\" x=\"441.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.65</text>\r\n",
       "<text text-anchor=\"middle\" x=\"441.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 6</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"130.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"130.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 2</text>\r\n",
       "<text text-anchor=\"middle\" x=\"130.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 2, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"130.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 5&#45;&gt;6 -->\r\n",
       "<g id=\"edge6\" class=\"edge\"><title>5&#45;&gt;6</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M174.255,-222.907C167.873,-211.763 160.941,-199.658 154.516,-188.439\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"157.5,-186.606 149.493,-179.667 151.425,-190.084 157.5,-186.606\"/>\r\n",
       "</g>\r\n",
       "<!-- 7 -->\r\n",
       "<g id=\"node8\" class=\"node\"><title>7</title>\r\n",
       "<path fill=\"#8139e5\" stroke=\"black\" d=\"M309.5,-179.5C309.5,-179.5 217.5,-179.5 217.5,-179.5 211.5,-179.5 205.5,-173.5 205.5,-167.5 205.5,-167.5 205.5,-123.5 205.5,-123.5 205.5,-117.5 211.5,-111.5 217.5,-111.5 217.5,-111.5 309.5,-111.5 309.5,-111.5 315.5,-111.5 321.5,-117.5 321.5,-123.5 321.5,-123.5 321.5,-167.5 321.5,-167.5 321.5,-173.5 315.5,-179.5 309.5,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"263.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"263.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 5</text>\r\n",
       "<text text-anchor=\"middle\" x=\"263.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 0, 5]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"263.5\" y=\"-119.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 5&#45;&gt;7 -->\r\n",
       "<g id=\"edge7\" class=\"edge\"><title>5&#45;&gt;7</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M220.398,-222.907C226.685,-211.763 233.513,-199.658 239.842,-188.439\"/>\r\n",
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       "</g>\r\n",
       "<!-- 9 -->\r\n",
       "<g id=\"node10\" class=\"node\"><title>9</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M375,-298.5C375,-298.5 286,-298.5 286,-298.5 280,-298.5 274,-292.5 274,-286.5 274,-286.5 274,-242.5 274,-242.5 274,-236.5 280,-230.5 286,-230.5 286,-230.5 375,-230.5 375,-230.5 381,-230.5 387,-236.5 387,-242.5 387,-242.5 387,-286.5 387,-286.5 387,-292.5 381,-298.5 375,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"330.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"330.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 5</text>\r\n",
       "<text text-anchor=\"middle\" x=\"330.5\" y=\"-253.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 5, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"330.5\" y=\"-238.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 8&#45;&gt;9 -->\r\n",
       "<g id=\"edge9\" class=\"edge\"><title>8&#45;&gt;9</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M402.989,-341.907C391.997,-330.321 380.021,-317.698 369.028,-306.111\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"371.388,-303.513 361.966,-298.667 366.31,-308.331 371.388,-303.513\"/>\r\n",
       "</g>\r\n",
       "<!-- 10 -->\r\n",
       "<g id=\"node11\" class=\"node\"><title>10</title>\r\n",
       "<path fill=\"#8139e5\" stroke=\"black\" d=\"M509.5,-298.5C509.5,-298.5 417.5,-298.5 417.5,-298.5 411.5,-298.5 405.5,-292.5 405.5,-286.5 405.5,-286.5 405.5,-242.5 405.5,-242.5 405.5,-236.5 411.5,-230.5 417.5,-230.5 417.5,-230.5 509.5,-230.5 509.5,-230.5 515.5,-230.5 521.5,-236.5 521.5,-242.5 521.5,-242.5 521.5,-286.5 521.5,-286.5 521.5,-292.5 515.5,-298.5 509.5,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"463.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"463.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 1</text>\r\n",
       "<text text-anchor=\"middle\" x=\"463.5\" y=\"-253.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 0, 1]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"463.5\" y=\"-238.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 8&#45;&gt;10 -->\r\n",
       "<g id=\"edge10\" class=\"edge\"><title>8&#45;&gt;10</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M449.133,-341.907C451.145,-331.204 453.324,-319.615 455.363,-308.776\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"458.855,-309.142 457.263,-298.667 451.976,-307.848 458.855,-309.142\"/>\r\n",
       "</g>\r\n",
       "<!-- 12 -->\r\n",
       "<g id=\"node13\" class=\"node\"><title>12</title>\r\n",
       "<path fill=\"#c09cf2\" stroke=\"black\" d=\"M671.5,-425C671.5,-425 563.5,-425 563.5,-425 557.5,-425 551.5,-419 551.5,-413 551.5,-413 551.5,-354 551.5,-354 551.5,-348 557.5,-342 563.5,-342 563.5,-342 671.5,-342 671.5,-342 677.5,-342 683.5,-348 683.5,-354 683.5,-354 683.5,-413 683.5,-413 683.5,-419 677.5,-425 671.5,-425\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"617.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">脯氨酸 &lt;= 597.833</text>\r\n",
       "<text text-anchor=\"middle\" x=\"617.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.918</text>\r\n",
       "<text text-anchor=\"middle\" x=\"617.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 3</text>\r\n",
       "<text text-anchor=\"middle\" x=\"617.5\" y=\"-364.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 1, 2]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"617.5\" y=\"-349.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 11&#45;&gt;12 -->\r\n",
       "<g id=\"edge12\" class=\"edge\"><title>11&#45;&gt;12</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M654.724,-460.907C650.524,-452.286 646.044,-443.09 641.701,-434.175\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"644.767,-432.478 637.241,-425.021 638.474,-435.544 644.767,-432.478\"/>\r\n",
       "</g>\r\n",
       "<!-- 15 -->\r\n",
       "<g id=\"node16\" class=\"node\"><title>15</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M811,-417.5C811,-417.5 714,-417.5 714,-417.5 708,-417.5 702,-411.5 702,-405.5 702,-405.5 702,-361.5 702,-361.5 702,-355.5 708,-349.5 714,-349.5 714,-349.5 811,-349.5 811,-349.5 817,-349.5 823,-355.5 823,-361.5 823,-361.5 823,-405.5 823,-405.5 823,-411.5 817,-417.5 811,-417.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"762.5\" y=\"-402.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"762.5\" y=\"-387.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 20</text>\r\n",
       "<text text-anchor=\"middle\" x=\"762.5\" y=\"-372.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 20, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"762.5\" y=\"-357.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 11&#45;&gt;15 -->\r\n",
       "<g id=\"edge15\" class=\"edge\"><title>11&#45;&gt;15</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M705.031,-460.907C713.58,-449.542 722.879,-437.178 731.456,-425.774\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"734.34,-427.763 737.554,-417.667 728.746,-423.555 734.34,-427.763\"/>\r\n",
       "</g>\r\n",
       "<!-- 13 -->\r\n",
       "<g id=\"node14\" class=\"node\"><title>13</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M641,-298.5C641,-298.5 552,-298.5 552,-298.5 546,-298.5 540,-292.5 540,-286.5 540,-286.5 540,-242.5 540,-242.5 540,-236.5 546,-230.5 552,-230.5 552,-230.5 641,-230.5 641,-230.5 647,-230.5 653,-236.5 653,-242.5 653,-242.5 653,-286.5 653,-286.5 653,-292.5 647,-298.5 641,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"596.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"596.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 1</text>\r\n",
       "<text text-anchor=\"middle\" x=\"596.5\" y=\"-253.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 1, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"596.5\" y=\"-238.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 12&#45;&gt;13 -->\r\n",
       "<g id=\"edge13\" class=\"edge\"><title>12&#45;&gt;13</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M610.214,-341.907C608.293,-331.204 606.213,-319.615 604.268,-308.776\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"607.665,-307.891 602.453,-298.667 600.775,-309.128 607.665,-307.891\"/>\r\n",
       "</g>\r\n",
       "<!-- 14 -->\r\n",
       "<g id=\"node15\" class=\"node\"><title>14</title>\r\n",
       "<path fill=\"#8139e5\" stroke=\"black\" d=\"M775.5,-298.5C775.5,-298.5 683.5,-298.5 683.5,-298.5 677.5,-298.5 671.5,-292.5 671.5,-286.5 671.5,-286.5 671.5,-242.5 671.5,-242.5 671.5,-236.5 677.5,-230.5 683.5,-230.5 683.5,-230.5 775.5,-230.5 775.5,-230.5 781.5,-230.5 787.5,-236.5 787.5,-242.5 787.5,-242.5 787.5,-286.5 787.5,-286.5 787.5,-292.5 781.5,-298.5 775.5,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"729.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"729.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 2</text>\r\n",
       "<text text-anchor=\"middle\" x=\"729.5\" y=\"-253.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 0, 2]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"729.5\" y=\"-238.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 贝尔摩德</text>\r\n",
       "</g>\r\n",
       "<!-- 12&#45;&gt;14 -->\r\n",
       "<g id=\"edge14\" class=\"edge\"><title>12&#45;&gt;14</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M656.358,-341.907C667.449,-330.321 679.533,-317.698 690.625,-306.111\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"693.364,-308.311 697.75,-298.667 688.307,-303.47 693.364,-308.311\"/>\r\n",
       "</g>\r\n",
       "<!-- 17 -->\r\n",
       "<g id=\"node18\" class=\"node\"><title>17</title>\r\n",
       "<path fill=\"#baf6d3\" stroke=\"black\" d=\"M985,-544C985,-544 880,-544 880,-544 874,-544 868,-538 868,-532 868,-532 868,-473 868,-473 868,-467 874,-461 880,-461 880,-461 985,-461 985,-461 991,-461 997,-467 997,-473 997,-473 997,-532 997,-532 997,-538 991,-544 985,-544\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-528.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">镁 &lt;= 101.25</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-513.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.967</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-498.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 33</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-483.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [13, 20, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-468.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 16&#45;&gt;17 -->\r\n",
       "<g id=\"edge17\" class=\"edge\"><title>16&#45;&gt;17</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M932.5,-579.907C932.5,-571.649 932.5,-562.864 932.5,-554.302\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"936,-554.021 932.5,-544.021 929,-554.021 936,-554.021\"/>\r\n",
       "</g>\r\n",
       "<!-- 30 -->\r\n",
       "<g id=\"node31\" class=\"node\"><title>30</title>\r\n",
       "<path fill=\"#e58139\" stroke=\"black\" d=\"M1124,-536.5C1124,-536.5 1027,-536.5 1027,-536.5 1021,-536.5 1015,-530.5 1015,-524.5 1015,-524.5 1015,-480.5 1015,-480.5 1015,-474.5 1021,-468.5 1027,-468.5 1027,-468.5 1124,-468.5 1124,-468.5 1130,-468.5 1136,-474.5 1136,-480.5 1136,-480.5 1136,-524.5 1136,-524.5 1136,-530.5 1130,-536.5 1124,-536.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1075.5\" y=\"-521.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1075.5\" y=\"-506.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 25</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1075.5\" y=\"-491.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [25, 0, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1075.5\" y=\"-476.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
       "</g>\r\n",
       "<!-- 16&#45;&gt;30 -->\r\n",
       "<g id=\"edge30\" class=\"edge\"><title>16&#45;&gt;30</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M982.113,-579.907C996.679,-567.99 1012.59,-554.976 1027.08,-543.12\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"1029.44,-545.708 1034.96,-536.667 1025.01,-540.29 1029.44,-545.708\"/>\r\n",
       "</g>\r\n",
       "<!-- 18 -->\r\n",
       "<g id=\"node19\" class=\"node\"><title>18</title>\r\n",
       "<path fill=\"#5eea99\" stroke=\"black\" d=\"M981,-425C981,-425 884,-425 884,-425 878,-425 872,-419 872,-413 872,-413 872,-354 872,-354 872,-348 878,-342 884,-342 884,-342 981,-342 981,-342 987,-342 993,-348 993,-354 993,-354 993,-413 993,-413 993,-419 987,-425 981,-425\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">镁 &lt;= 94.306</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.629</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 19</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-364.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [3, 16, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"932.5\" y=\"-349.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 17&#45;&gt;18 -->\r\n",
       "<g id=\"edge18\" class=\"edge\"><title>17&#45;&gt;18</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M932.5,-460.907C932.5,-452.649 932.5,-443.864 932.5,-435.302\"/>\r\n",
       "<polygon fill=\"black\" stroke=\"black\" points=\"936,-435.021 932.5,-425.021 929,-435.021 936,-435.021\"/>\r\n",
       "</g>\r\n",
       "<!-- 25 -->\r\n",
       "<g id=\"node26\" class=\"node\"><title>25</title>\r\n",
       "<path fill=\"#efb388\" stroke=\"black\" d=\"M1185,-425C1185,-425 1088,-425 1088,-425 1082,-425 1076,-419 1076,-413 1076,-413 1076,-354 1076,-354 1076,-348 1082,-342 1088,-342 1088,-342 1185,-342 1185,-342 1191,-342 1197,-348 1197,-354 1197,-354 1197,-413 1197,-413 1197,-419 1191,-425 1185,-425\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-409.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">酒精 &lt;= 12.542</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-394.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.863</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-379.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 14</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-364.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [10, 4, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-349.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
       "</g>\r\n",
       "<!-- 17&#45;&gt;25 -->\r\n",
       "<g id=\"edge25\" class=\"edge\"><title>17&#45;&gt;25</title>\r\n",
       "<path fill=\"none\" stroke=\"black\" d=\"M997.047,-464.48C1019.31,-451.714 1044.33,-437.363 1066.97,-424.379\"/>\r\n",
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       "<!-- 19 -->\r\n",
       "<g id=\"node20\" class=\"node\"><title>19</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M915,-298.5C915,-298.5 818,-298.5 818,-298.5 812,-298.5 806,-292.5 806,-286.5 806,-286.5 806,-242.5 806,-242.5 806,-236.5 812,-230.5 818,-230.5 818,-230.5 915,-230.5 915,-230.5 921,-230.5 927,-236.5 927,-242.5 927,-242.5 927,-286.5 927,-286.5 927,-292.5 921,-298.5 915,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"866.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"866.5\" y=\"-268.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 13</text>\r\n",
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       "<!-- 20 -->\r\n",
       "<g id=\"node21\" class=\"node\"><title>20</title>\r\n",
       "<path fill=\"#ffffff\" stroke=\"black\" d=\"M1049.5,-306C1049.5,-306 957.5,-306 957.5,-306 951.5,-306 945.5,-300 945.5,-294 945.5,-294 945.5,-235 945.5,-235 945.5,-229 951.5,-223 957.5,-223 957.5,-223 1049.5,-223 1049.5,-223 1055.5,-223 1061.5,-229 1061.5,-235 1061.5,-235 1061.5,-294 1061.5,-294 1061.5,-300 1055.5,-306 1049.5,-306\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1003.5\" y=\"-290.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">苹果酸 &lt;= 1.953</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1003.5\" y=\"-275.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 1.0</text>\r\n",
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       "</g>\r\n",
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       "<g id=\"node22\" class=\"node\"><title>21</title>\r\n",
       "<path fill=\"#eeab7b\" stroke=\"black\" d=\"M950,-187C950,-187 747,-187 747,-187 741,-187 735,-181 735,-175 735,-175 735,-116 735,-116 735,-110 741,-104 747,-104 747,-104 950,-104 950,-104 956,-104 962,-110 962,-116 962,-116 962,-175 962,-175 962,-181 956,-187 950,-187\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"848.5\" y=\"-171.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">od280/od315稀释葡萄酒 &lt;= 2.635</text>\r\n",
       "<text text-anchor=\"middle\" x=\"848.5\" y=\"-156.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.811</text>\r\n",
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       "<g id=\"edge21\" class=\"edge\"><title>20&#45;&gt;21</title>\r\n",
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       "<g id=\"node25\" class=\"node\"><title>24</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M1081,-179.5C1081,-179.5 992,-179.5 992,-179.5 986,-179.5 980,-173.5 980,-167.5 980,-167.5 980,-123.5 980,-123.5 980,-117.5 986,-111.5 992,-111.5 992,-111.5 1081,-111.5 1081,-111.5 1087,-111.5 1093,-117.5 1093,-123.5 1093,-123.5 1093,-167.5 1093,-167.5 1093,-173.5 1087,-179.5 1081,-179.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1036.5\" y=\"-164.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1036.5\" y=\"-149.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 2</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1036.5\" y=\"-134.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [0, 2, 0]</text>\r\n",
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       "</g>\r\n",
       "<!-- 20&#45;&gt;24 -->\r\n",
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       "<!-- 22 -->\r\n",
       "<g id=\"node23\" class=\"node\"><title>22</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M827,-68C827,-68 738,-68 738,-68 732,-68 726,-62 726,-56 726,-56 726,-12 726,-12 726,-6 732,-0 738,-0 738,-0 827,-0 827,-0 833,-0 839,-6 839,-12 839,-12 839,-56 839,-56 839,-62 833,-68 827,-68\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"782.5\" y=\"-52.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
       "<text text-anchor=\"middle\" x=\"782.5\" y=\"-37.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">samples = 1</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"782.5\" y=\"-7.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 雪梨</text>\r\n",
       "</g>\r\n",
       "<!-- 21&#45;&gt;22 -->\r\n",
       "<g id=\"edge22\" class=\"edge\"><title>21&#45;&gt;22</title>\r\n",
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       "<!-- 23 -->\r\n",
       "<g id=\"node24\" class=\"node\"><title>23</title>\r\n",
       "<path fill=\"#e58139\" stroke=\"black\" d=\"M958,-68C958,-68 869,-68 869,-68 863,-68 857,-62 857,-56 857,-56 857,-12 857,-12 857,-6 863,-0 869,-0 869,-0 958,-0 958,-0 964,-0 970,-6 970,-12 970,-12 970,-56 970,-56 970,-62 964,-68 958,-68\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"913.5\" y=\"-52.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"913.5\" y=\"-22.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [3, 0, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"913.5\" y=\"-7.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
       "</g>\r\n",
       "<!-- 21&#45;&gt;23 -->\r\n",
       "<g id=\"edge23\" class=\"edge\"><title>21&#45;&gt;23</title>\r\n",
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       "<!-- 26 -->\r\n",
       "<g id=\"node27\" class=\"node\"><title>26</title>\r\n",
       "<path fill=\"#39e581\" stroke=\"black\" d=\"M1181,-298.5C1181,-298.5 1092,-298.5 1092,-298.5 1086,-298.5 1080,-292.5 1080,-286.5 1080,-286.5 1080,-242.5 1080,-242.5 1080,-236.5 1086,-230.5 1092,-230.5 1092,-230.5 1181,-230.5 1181,-230.5 1187,-230.5 1193,-236.5 1193,-242.5 1193,-242.5 1193,-286.5 1193,-286.5 1193,-292.5 1187,-298.5 1181,-298.5\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1136.5\" y=\"-283.3\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.0</text>\r\n",
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       "</g>\r\n",
       "<!-- 25&#45;&gt;26 -->\r\n",
       "<g id=\"edge26\" class=\"edge\"><title>25&#45;&gt;26</title>\r\n",
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       "<g id=\"node28\" class=\"node\"><title>27</title>\r\n",
       "<path fill=\"#e88e4d\" stroke=\"black\" d=\"M1320,-306C1320,-306 1223,-306 1223,-306 1217,-306 1211,-300 1211,-294 1211,-294 1211,-235 1211,-235 1211,-229 1217,-223 1223,-223 1223,-223 1320,-223 1320,-223 1326,-223 1332,-229 1332,-235 1332,-235 1332,-294 1332,-294 1332,-300 1326,-306 1320,-306\"/>\r\n",
       "<text text-anchor=\"middle\" x=\"1271.5\" y=\"-290.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">镁 &lt;= 127.243</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1271.5\" y=\"-275.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">entropy = 0.439</text>\r\n",
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       "<text text-anchor=\"middle\" x=\"1271.5\" y=\"-245.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">value = [10, 1, 0]</text>\r\n",
       "<text text-anchor=\"middle\" x=\"1271.5\" y=\"-230.8\" font-family=\"Helvetica,sans-Serif\" font-size=\"14.00\">class = 琴酒</text>\r\n",
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       "<g id=\"edge27\" class=\"edge\"><title>25&#45;&gt;27</title>\r\n",
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       "<path fill=\"#e58139\" stroke=\"black\" d=\"M1286,-179.5C1286,-179.5 1189,-179.5 1189,-179.5 1183,-179.5 1177,-173.5 1177,-167.5 1177,-167.5 1177,-123.5 1177,-123.5 1177,-117.5 1183,-111.5 1189,-111.5 1189,-111.5 1286,-111.5 1286,-111.5 1292,-111.5 1298,-117.5 1298,-123.5 1298,-123.5 1298,-167.5 1298,-167.5 1298,-173.5 1292,-179.5 1286,-179.5\"/>\r\n",
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       "</g>\r\n",
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       "<g id=\"edge28\" class=\"edge\"><title>27&#45;&gt;28</title>\r\n",
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       "<path fill=\"#39e581\" stroke=\"black\" d=\"M1417,-179.5C1417,-179.5 1328,-179.5 1328,-179.5 1322,-179.5 1316,-173.5 1316,-167.5 1316,-167.5 1316,-123.5 1316,-123.5 1316,-117.5 1322,-111.5 1328,-111.5 1328,-111.5 1417,-111.5 1417,-111.5 1423,-111.5 1429,-117.5 1429,-123.5 1429,-123.5 1429,-167.5 1429,-167.5 1429,-173.5 1423,-179.5 1417,-179.5\"/>\r\n",
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      "text/plain": [
       "<graphviz.files.Source at 0x2676a226070>"
      ]
     },
     "execution_count": 43,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "feature_name=['酒精','苹果酸','灰','灰的碱性','镁','总酚','类黄酮','非黄烷类酚类','花青素','颜色强度','色调','od280/od315稀释葡萄酒','脯氨酸']\n",
    "dot_data=tree.export_graphviz(clf,feature_names=feature_name,\n",
    "                              class_names=[\"琴酒\",\"雪梨\",\"贝尔摩德\"],\n",
    "                              filled=True,\n",
    "                              rounded=True\n",
    "                             )\n",
    "graph=graphviz.Source(dot_data)\n",
    "graph"
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  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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