graph_data.py

import numpy as np
import matplotlib.pyplot as plt

#global constants
INT_PERIOD = 5 # integration period, in this case 5 seconds and we plot by hours

def make_graph(input_data: list, int_period, x_label, y_label, title, sub=111)-> None:
    ''' graphs the data from the list using each point as a y coordinate in the line graph
    x is a range from 0 to len(list) with the integration period int_period
    '''
    step = int_period/3600
    data = np.array(input_data)
    
    time = np.arange(0.0, step*len(data), step)

    if(len(data) != len(time)): 
        # takes care of floating point division error incurred in line 11
        # print(len(data), len(time))
        data = data[:min(len(time), len(data))]
        time = time[:min(len(time), len(data))]
        
    plt.figure(1)
    plt.ylim([0, max(data)+30])
    plt.subplot(sub)
    plt.plot(time, data, 'k')
    
    plt.title(title)
    plt.xlabel(x_label)
    plt.ylabel(y_label)
    
def show_graph():
    plt.show()