This script plots a mesh grid (or heat map)
The np.meshgrid generates the series of (x,y) for the given x and y ranges.
e.g. x goes from 1 to 2, and y goes from 3 to 4 so grid will be:
4 (1,4) (2,4)
3 (1,3) (2,3)
1 2
Each value in the grid needs to be presented so the series are
x series (xx) = 1, 2, 1, 2
y series (yy) = 3, 3, 4, 4
Totally 4 dots in the grid.
The following script uses zz as the response value
The pcolormesh draws the grid with a color map = paired which is a type of color schemes.
import numpy as np
import matplotlib.pyplot as plt
xx, yy = np.meshgrid( np.arange(15,95,5), np.arange(0,11,1))
zz = xx /10 + yy/5
plt.figure(1, figsize=(4, 3))
plt.pcolormesh(xx, yy, zz, cmap=plt.cm.Paired)
plt.show()