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Draw graph (Python) - Eberle - Oct-30-2017
I have a text file that consists of 3 columns.
0.column contain X coordinate
1.column contain Y coordinate
2.column contain 0 or 1
So far I draw all the coordinates:
import matplotlib.pyplot as plt
import numpy as np
x, y = np.loadtxt("coordinates.txt",delimiter=' ',skiprows=1, usecols=(0,1),unpack=True)
plt.plot(x,y)
plt.show()I want to draw only those coordinates where the value of 2rd column is 1.Can you help me ?
Thanks
RE: Draw graph (Python) - heiner55 - May-28-2019
#!/usr/bin/python3
import matplotlib.pyplot as plt
import numpy as np
x,y,z = np.loadtxt("coordinates.txt", delimiter=' ', skiprows=1, unpack=True)
keep = z > 0
x = x[keep]
y = y[keep]
print(x)
print(y)
plt.plot(x,y)
plt.show()
#done