code: import numpy as np
  
  # as in the previous example, load decays.csv into a NumPy array
  decaydata = np.loadtxt('decays.csv', delimiter=',', skiprows=1)
  
  # provide handles for the x and y columns
  time = decaydata[:,0]
  decays = decaydata[:,1]
  
  # import the matplotlib plotting functionality
  import pylab as plt
  
  plt.plot(time, decays)
  
  plt.xlabel('Time (s)')
  plt.ylabel('Decays') 
  plt.title('Decays')
  plt.grid(True)
  plt.savefig("decays_matplotlib.png")
  
apis: numpy.loadtxt