Python/Matplotlib - Change the relative size of a subplot

Question

I have two plots

import matplotlib.pyplot as plt plt.subplot(121) plt.subplot(122) 

I want plt.subplot(122) to be half as wide as plt.subplot(121). Is there a straightforward way to set the height and width parameters for a subplot?

Answer 1

See the grid-spec tutorial:

http://matplotlib.sourceforge.net/users/gridspec.html

Example code:

import matplotlib.pyplot as plt import matplotlib.gridspec as gridspec  f = plt.figure()  gs = gridspec.GridSpec(1, 2,width_ratios=[2,1])                ax1 = plt.subplot(gs[0]) ax2 = plt.subplot(gs[1])  plt.show() 

You can also adjust the height ratio using a similar option in GridSpec

Answer 2

By simply specifying the geometry with “122”, you're implicitly getting the automatic, equal-sized columns-and-rows layout.

To customise the layout grid, you need to get a little more specific. See “Customizing Location of Subplot Using GridSpec” in the Matplotlib docs.