			import numpy as np
			import matplotlib.pyplot as plt
			import sys

			if (not len(sys.argv) == 3):
			print("Please give the data file as the first argument and the separator as the second argument to this program")
			sys.exit()

			file_name = sys.argv[1]

			if sys.argv[2] == "comma":
			separator = ","
			elif sys.argv[2] == "space":
			separator = " "
			elif sys.argv[2] == "tab":
			separator = "\t"
			elif sys.argv[2] == "pipe":
			separator = "\|"
			else:
			print("not known separator! please choose one of {comma, space, tab, pipe}")
			exit(0);

			data = np.loadtxt(file_name, delimiter = separator)

			plt.figure()
			plt.plot(data[:,0], data[:,1], '-bo')
			if (np.shape(data)[1] == 3):
			plt.plot(data[:,0], data[:,1]/data[:,2]*100.0, '-r', linewidth=4)
			plt.legend(['Series','Analytical value'], loc = 4)
			plt.grid()
			plt.xlabel("i")
			plt.ylabel("value")
			plt.show()

SP4E_HW1/homework2/plot.py
d052f3bfc6acmaster

plot.py
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