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<!DOCTYPE html>
<html lang="en">
<head>
<title>SSDataFrame Class Reference</title>
<link rel="stylesheet" type="text/css" href="../css/jazzy.css" />
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<meta charset='utf-8'>
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<body>
<a name="//apple_ref/swift/Class/SSDataFrame" class="dashAnchor"></a>
<a title="SSDataFrame Class Reference"></a>
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<div class="content-wrapper">
<p><a href="../index.html">SwiftyStats Docs</a> (95% documented)</p>
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<a href="../index.html">SwiftyStats Reference</a>
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SSDataFrame Class Reference
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<li class="nav-group-name">
<a href="../Classes.html">Classes</a>
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<a href="../Classes/SSDataFrame.html">SSDataFrame</a>
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<a href="../Classes/SSExamine.html">SSExamine</a>
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<a href="../Classes/SSSwiftyStatsError.html">SSSwiftyStatsError</a>
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<li class="nav-group-task">
<a href="../Classes/SSSwiftyStatsError/ErrorType.html">– ErrorType</a>
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<a href="../Enums.html">Enumerations</a>
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<a href="../Enums/SSLeveneTestType.html">SSLeveneTestType</a>
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<a href="../Enums/SSMomentType.html">SSMomentType</a>
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<a href="../Enums/SSOutlierTest.html">SSOutlierTest</a>
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<a href="../Enums/SSPostHocTestType.html">SSPostHocTestType</a>
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<a href="../Enums/SSProbDist.html">SSProbDist</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Beta.html">– Beta</a>
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<a href="../Enums/SSProbDist.html#/s:11SwiftyStats10SSProbDistO14NoncentralBetaO">– NoncentralBeta</a>
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<a href="../Enums/SSProbDist/Binomial.html">– Binomial</a>
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<a href="../Enums/SSProbDist/Cauchy.html">– Cauchy</a>
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<a href="../Enums/SSProbDist/ChiSquare.html">– ChiSquare</a>
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<a href="../Enums/SSProbDist/NonCentralChiSquare.html">– NonCentralChiSquare</a>
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<a href="../Enums/SSProbDist/Erlang.html">– Erlang</a>
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<a href="../Enums/SSProbDist/Exponential.html">– Exponential</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/ExtremeValue.html">– ExtremeValue</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/FRatio.html">– FRatio</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSProbDist/NonCentralFRatio.html">– NonCentralFRatio</a>
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<a href="../Enums/SSProbDist/Gamma.html">– Gamma</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSProbDist/Gaussian.html">– Gaussian</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/StandardNormal.html">– StandardNormal</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Laplace.html">– Laplace</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/LogNormal.html">– LogNormal</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Logistic.html">– Logistic</a>
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<a href="../Enums/SSProbDist/NonCentralSudentT.html">– NonCentralSudentT</a>
</li>
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<a href="../Enums/SSProbDist/Pareto.html">– Pareto</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSProbDist/Poisson.html">– Poisson</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Rayleigh.html">– Rayleigh</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/StudentT.html">– StudentT</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Triangular.html">– Triangular</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/Uniform.html">– Uniform</a>
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<li class="nav-group-task">
<a href="../Enums/SSProbDist/InverseNormal.html">– InverseNormal</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSProbDist/Weibull.html">– Weibull</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSProbDist/VonMises.html">– VonMises</a>
</li>
<li class="nav-group-task">
<a href="../Enums/SSRunsTestCuttingPoint.html">SSRunsTestCuttingPoint</a>
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<a href="../Enums/SSSemiVariance.html">SSSemiVariance</a>
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<a href="../Enums/SSSkewness.html">SSSkewness</a>
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<a href="../Enums/SSSortUniqeItems.html">SSSortUniqeItems</a>
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<a href="../Enums/SSStandardDeviationType.html">SSStandardDeviationType</a>
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<a href="../Enums/SSVarTestType.html">SSVarTestType</a>
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<a href="../Enums/SSVarianceType.html">SSVarianceType</a>
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<a href="../Extensions/Double.html">Double</a>
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<a href="../Extensions/Float.html">Float</a>
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<a href="../Extensions/Float80.html">Float80</a>
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<a href="../Extensions/String.html">String</a>
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<a href="../Functions.html#/s:11SwiftyStats3wtf5truthySb_tF">wtf(truth:)</a>
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<a href="../Protocols.html">Protocols</a>
<ul class="nav-group-tasks">
<li class="nav-group-task">
<a href="../Protocols/SSFloatingPoint.html">SSFloatingPoint</a>
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<a href="../Structs.html">Structures</a>
<ul class="nav-group-tasks">
<li class="nav-group-task">
<a href="../Structs/SS2SampleTTestResult.html">SS2SampleTTestResult</a>
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<li class="nav-group-task">
<a href="../Structs/SSADTestResult.html">SSADTestResult</a>
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<li class="nav-group-task">
<a href="../Structs/SSBinomialTestResult.html">SSBinomialTestResult</a>
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<li class="nav-group-task">
<a href="../Structs/SSBoxLjungResult.html">SSBoxLjungResult</a>
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<li class="nav-group-task">
<a href="../Structs/SSBoxWhisker.html">SSBoxWhisker</a>
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<a href="../Structs/SSChiSquareVarianceTestResult.html">SSChiSquareVarianceTestResult</a>
</li>
<li class="nav-group-task">
<a href="../Structs/SSConfIntv.html">SSConfIntv</a>
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<li class="nav-group-task">
<a href="../Structs/SSCrosstab.html">SSCrosstab</a>
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<li class="nav-group-task">
<a href="../Structs/SSCumulativeFrequencyTableItem.html">SSCumulativeFrequencyTableItem</a>
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<li class="nav-group-task">
<a href="../Structs/SSDescriptiveStats.html">SSDescriptiveStats</a>
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<li class="nav-group-task">
<a href="../Structs/SSESDTestResult.html">SSESDTestResult</a>
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<a href="../Structs/SSFTestResult.html">SSFTestResult</a>
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<a href="../Structs/SSFrequencyTableItem.html">SSFrequencyTableItem</a>
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<a href="../Structs/SSGrubbsTestResult.html">SSGrubbsTestResult</a>
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<a href="../Structs/SSKSTestResult.html">SSKSTestResult</a>
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<a href="../Structs/SSKSTwoSampleTestResult.html">SSKSTwoSampleTestResult</a>
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<a href="../Structs/SSKruskalWallisHTestResult.html">SSKruskalWallisHTestResult</a>
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<a href="../Structs/SSMannWhitneyUTestResult.html">SSMannWhitneyUTestResult</a>
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<a href="../Structs/SSMatchedPairsTTestResult.html">SSMatchedPairsTTestResult</a>
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<a href="../Structs/SSOneSampleTTestResult.html">SSOneSampleTTestResult</a>
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<a href="../Structs/SSOneWayANOVATestResult.html">SSOneWayANOVATestResult</a>
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<a href="../Structs/SSProbDistParams.html">SSProbDistParams</a>
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<a href="../Structs/SSQuartile.html">SSQuartile</a>
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<a href="../Structs/SSSignTestRestult.html">SSSignTestRestult</a>
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<a href="../Structs/SSVarianceEqualityTestResult.html">SSVarianceEqualityTestResult</a>
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<a href="../Structs/SSWaldWolfowitzTwoSampleTestResult.html">SSWaldWolfowitzTwoSampleTestResult</a>
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<a href="../Structs/SSWilcoxonMatchedPairsTestResult.html">SSWilcoxonMatchedPairsTestResult</a>
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<article class="main-content">
<section>
<section class="section">
<h1>SSDataFrame</h1>
<div class="declaration">
<div class="language">
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">class</span> <span class="kt">SSDataFrame</span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span> <span class="p">:</span> <span class="kt">NSObject</span><span class="p">,</span> <span class="kt">NSCopying</span><span class="p">,</span> <span class="kt">Codable</span><span class="p">,</span> <span class="kt">NSMutableCopying</span><span class="p">,</span> <span class="kt">SSDataFrameContainer</span> <span class="k">where</span> <span class="kt">SSElement</span> <span class="p">:</span> <span class="kt">Comparable</span><span class="p">,</span> <span class="kt">SSElement</span> <span class="p">:</span> <span class="kt">Decodable</span><span class="p">,</span> <span class="kt">SSElement</span> <span class="p">:</span> <span class="kt">Encodable</span><span class="p">,</span> <span class="kt">SSElement</span> <span class="p">:</span> <span class="kt">Hashable</span><span class="p">,</span> <span class="kt">FPT</span> <span class="p">:</span> <span class="kt">Decodable</span><span class="p">,</span> <span class="kt">FPT</span> <span class="p">:</span> <span class="kt">Encodable</span><span class="p">,</span> <span class="kt">FPT</span> <span class="p">:</span> <span class="kt"><a href="../Protocols/SSFloatingPoint.html">SSFloatingPoint</a></span></code></pre>
</div>
</div>
<p>Defines a structure holding multiple SSExamine objects:
Each column contains an SSExamine object.</p>
<p>Each COL represents a single SSExamine object. The structure of the dataframe is like a two-dimensional table:</p>
<p>With N = sampleSize:</p>
<pre class="highlight swift"><code><span class="o"><</span> <span class="kt">COL</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="kt">COL</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="kt">COL</span><span class="p">[</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span> <span class="o">></span>
<span class="n">tags</span> <span class="n">tags</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="n">tags</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="n">tags</span><span class="p">[</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
<span class="n">cnames</span> <span class="n">cnames</span><span class="p">[</span><span class="mi">0</span> <span class="n">cnames</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="n">cnames</span><span class="p">[</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
<span class="kt">ROW0</span> <span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="n">data</span><span class="p">[</span><span class="mi">0</span><span class="p">][</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
<span class="kt">ROW1</span> <span class="n">data</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="n">data</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="n">data</span><span class="p">[</span><span class="mi">1</span><span class="p">][</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
<span class="o">...</span> <span class="o">..........</span> <span class="o">..........</span> <span class="o">...</span> <span class="o">....................</span>
<span class="kt">ROWN</span> <span class="n">data</span><span class="p">[</span><span class="kt">N</span><span class="p">][</span><span class="mi">0</span><span class="p">]</span> <span class="n">data</span><span class="p">[</span><span class="kt">N</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="o">...</span> <span class="n">data</span><span class="p">[</span><span class="kt">N</span><span class="p">][</span><span class="n">columns</span> <span class="o">-</span> <span class="mi">1</span><span class="p">]</span>
</code></pre>
</section>
<section class="section task-group-section">
<div class="task-group">
<ul>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC6encode2toys7Encoder_p_tKF"></a>
<a name="//apple_ref/swift/Method/encode(to:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC6encode2toys7Encoder_p_tKF">encode(to:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Required func to conform to Codable protocol</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">encode</span><span class="p">(</span><span class="n">to</span> <span class="nv">encoder</span><span class="p">:</span> <span class="kt">Encoder</span><span class="p">)</span> <span class="k">throws</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC4fromACyxq_Gs7Decoder_p_tKcfc"></a>
<a name="//apple_ref/swift/Method/init(from:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC4fromACyxq_Gs7Decoder_p_tKcfc">init(from:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Required func to conform to Codable protocol</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">required</span> <span class="nf">init</span><span class="p">(</span><span class="n">from</span> <span class="nv">decoder</span><span class="p">:</span> <span class="kt">Decoder</span><span class="p">)</span> <span class="k">throws</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC9archiveTo8filePath9overwriteSbSSSg_SbSgtKF"></a>
<a name="//apple_ref/swift/Method/archiveTo(filePath:overwrite:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC9archiveTo8filePath9overwriteSbSSSg_SbSgtKF">archiveTo(filePath:<wbr>overwrite:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Saves the dataframe to filePath using JSONEncoder</p>
<div class="aside aside-throws">
<p class="aside-title">Throws</p>
SSSwiftyStatsError.posixError (file can’t be removed), SSSwiftyStatsError.directoryDoesNotExist, SSSwiftyStatsError.fileNotReadable
</div>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">archiveTo</span><span class="p">(</span><span class="n">filePath</span> <span class="nv">path</span><span class="p">:</span> <span class="kt">String</span><span class="o">!</span><span class="p">,</span> <span class="nv">overwrite</span><span class="p">:</span> <span class="kt">Bool</span><span class="o">!</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-></span> <span class="kt">Bool</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>path</em>
</code>
</td>
<td>
<div>
<p>The full qualified filename.</p>
</div>
</td>
</tr>
<tr>
<td>
<code>
<em>overwrite</em>
</code>
</td>
<td>
<div>
<p>If true, file will be overwritten.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC13unarchiveFrom8filePathACyxq_GSgSSSg_tKFZ"></a>
<a name="//apple_ref/swift/Method/unarchiveFrom(filePath:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC13unarchiveFrom8filePathACyxq_GSgSSSg_tKFZ">unarchiveFrom(filePath:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Initializes a new dataframe from an archive saved by archiveTo(filePath path:overwrite:).</p>
<div class="aside aside-throws">
<p class="aside-title">Throws</p>
SSSwiftyStatError.fileNotReadable
</div>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">class</span> <span class="kd">func</span> <span class="nf">unarchiveFrom</span><span class="p">(</span><span class="n">filePath</span> <span class="nv">path</span><span class="p">:</span> <span class="kt">String</span><span class="o">!</span><span class="p">)</span> <span class="k">throws</span> <span class="o">-></span> <span class="kt">SSDataFrame</span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span><span class="p">?</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>path</em>
</code>
</td>
<td>
<div>
<p>The full qualified filename.</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC8examinesSayAA9SSExamineCyxq_GGvp"></a>
<a name="//apple_ref/swift/Property/examines" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC8examinesSayAA9SSExamineCyxq_GGvp">examines</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Array containing all SSExamine objects</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">examines</span><span class="p">:</span> <span class="kt">Array</span><span class="o"><</span><span class="kt"><a href="../Classes/SSExamine.html">SSExamine</a></span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">>></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC10sampleSizeSivp"></a>
<a name="//apple_ref/swift/Property/sampleSize" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC10sampleSizeSivp">sampleSize</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Number of rows per column (= sample size)</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">sampleSize</span><span class="p">:</span> <span class="kt">Int</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC7isEqualySbypSgF"></a>
<a name="//apple_ref/swift/Method/isEqual(_:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC7isEqualySbypSgF">isEqual(_:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Returns true if the receiver is equal to <code>object</code>.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">override</span> <span class="kd">func</span> <span class="nf">isEqual</span><span class="p">(</span><span class="n">_</span> <span class="nv">object</span><span class="p">:</span> <span class="kt">Any</span><span class="p">?)</span> <span class="o">-></span> <span class="kt">Bool</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC14countOfSamplesSivp"></a>
<a name="//apple_ref/swift/Property/countOfSamples" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC14countOfSamplesSivp">countOfSamples</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Number of samples (Same as <code><a href="../Classes/SSDataFrame.html#/s:11SwiftyStats11SSDataFrameC7columnsSivp">columns</a></code>)</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">countOfSamples</span><span class="p">:</span> <span class="kt">Int</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC7columnsSivp"></a>
<a name="//apple_ref/swift/Property/columns" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC7columnsSivp">columns</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Number of samples (Same as <code><a href="../Classes/SSDataFrame.html#/s:11SwiftyStats11SSDataFrameC14countOfSamplesSivp">countOfSamples</a></code>)</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">columns</span><span class="p">:</span> <span class="kt">Int</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC7isEmptySbvp"></a>
<a name="//apple_ref/swift/Property/isEmpty" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC7isEmptySbvp">isEmpty</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Returns true, if the receiver is empty (i.e. there are no data)</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="k">var</span> <span class="nv">isEmpty</span><span class="p">:</span> <span class="kt">Bool</span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameCACyxq_Gycfc"></a>
<a name="//apple_ref/swift/Method/init()" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameCACyxq_Gycfc">init()</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Required initializer</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="k">override</span> <span class="kd">public</span> <span class="nf">init</span><span class="p">()</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC6append_4nameyAA9SSExamineCyxq_G_SSSgtKF"></a>
<a name="//apple_ref/swift/Method/append(_:name:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC6append_4nameyAA9SSExamineCyxq_G_SSSgtKF">append(_:<wbr>name:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Appends a column</p>
<div class="aside aside-throws">
<p class="aside-title">Throws</p>
SSSwiftyStatsError examine.sampleSize != self.rows
</div>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">append</span><span class="p">(</span><span class="n">_</span> <span class="nv">examine</span><span class="p">:</span> <span class="kt"><a href="../Classes/SSExamine.html">SSExamine</a></span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span><span class="p">,</span> <span class="nv">name</span><span class="p">:</span> <span class="kt">String</span><span class="p">?)</span> <span class="k">throws</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>examine</em>
</code>
</td>
<td>
<div>
<p>The SSExamine object</p>
</div>
</td>
</tr>
<tr>
<td>
<code>
<em>name</em>
</code>
</td>
<td>
<div>
<p>Name of column</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC9removeAllyyF"></a>
<a name="//apple_ref/swift/Method/removeAll()" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC9removeAllyyF">removeAll()</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Removes all columns</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">removeAll</span><span class="p">()</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC6remove4nameAA9SSExamineCyxq_GSgSSSg_tF"></a>
<a name="//apple_ref/swift/Method/remove(name:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC6remove4nameAA9SSExamineCyxq_GSgSSSg_tF">remove(name:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Removes a column</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">remove</span><span class="p">(</span><span class="nv">name</span><span class="p">:</span> <span class="kt">String</span><span class="o">!</span><span class="p">)</span> <span class="o">-></span> <span class="kt"><a href="../Classes/SSExamine.html">SSExamine</a></span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span><span class="p">?</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>name</em>
</code>
</td>
<td>
<div>
<p>Name of column</p>
</div>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<h4>Return Value</h4>
<p>the removed column oe nil</p>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC3row2atSayxGSi_tF"></a>
<a name="//apple_ref/swift/Method/row(at:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC3row2atSayxGSi_tF">row(at:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Returns the row at a given index</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">row</span><span class="p">(</span><span class="n">at</span> <span class="nv">index</span><span class="p">:</span> <span class="kt">Int</span><span class="p">)</span> <span class="o">-></span> <span class="kt">Array</span><span class="o"><</span><span class="kt">SSElement</span><span class="o">></span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameCyAA9SSExamineCyxq_GSicip"></a>
<a name="//apple_ref/swift/Method/subscript(_:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameCyAA9SSExamineCyxq_GSicip">subscript(_:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Accesses the column at a given index</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="nf">subscript</span><span class="p">(</span><span class="nv">idx</span><span class="p">:</span> <span class="kt">Int</span><span class="p">)</span> <span class="o">-></span> <span class="kt"><a href="../Classes/SSExamine.html">SSExamine</a></span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameCyAA9SSExamineCyxq_GSScip"></a>
<a name="//apple_ref/swift/Method/subscript(_:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameCyAA9SSExamineCyxq_GSScip">subscript(_:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Accesses the column named <code>name</code></p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="nf">subscript</span><span class="p">(</span><span class="nv">name</span><span class="p">:</span> <span class="kt">String</span><span class="p">)</span> <span class="o">-></span> <span class="kt"><a href="../Classes/SSExamine.html">SSExamine</a></span><span class="o"><</span><span class="kt">SSElement</span><span class="p">,</span> <span class="kt">FPT</span><span class="o">></span> <span class="p">{</span> <span class="k">get</span> <span class="p">}</span></code></pre>
</div>
</div>
</section>
</div>
</li>
<li class="item">
<div>
<code>
<a name="/s:11SwiftyStats11SSDataFrameC4copy4withyp10ObjectiveC6NSZoneVSg_tF"></a>
<a name="//apple_ref/swift/Method/copy(with:)" class="dashAnchor"></a>
<a class="token" href="#/s:11SwiftyStats11SSDataFrameC4copy4withyp10ObjectiveC6NSZoneVSg_tF">copy(with:<wbr>)</a>
</code>
</div>
<div class="height-container">
<div class="pointer-container"></div>
<section class="section">
<div class="pointer"></div>
<div class="abstract">
<p>Returns a new instance that’s a copy of the receiver.</p>
<p>The returned object is implicitly retained by the sender, who is responsible for releasing it. The copy returned is immutable if the consideration “immutable vs. mutable” applies to the receiving object; otherwise the exact nature of the copy is determined by the class.</p>
</div>
<div class="declaration">
<h4>Declaration</h4>
<div class="language">
<p class="aside-title">Swift</p>
<pre class="highlight swift"><code><span class="kd">public</span> <span class="kd">func</span> <span class="nf">copy</span><span class="p">(</span><span class="n">with</span> <span class="nv">zone</span><span class="p">:</span> <span class="kt">NSZone</span><span class="p">?</span> <span class="o">=</span> <span class="kc">nil</span><span class="p">)</span> <span class="o">-></span> <span class="kt">Any</span></code></pre>
</div>
</div>
<div>
<h4>Parameters</h4>
<table class="graybox">
<tbody>
<tr>
<td>
<code>
<em>zone</em>
</code>
</td>
<td>
<div>
<p>This parameter is ignored. Memory zones are no longer used by Objective-C.</p>