How to Create Matplotlib Subplots with Different Widths and Heights?

Creating Subplots with Different Sizes Using Matplotlib

In Matplotlib, when adding multiple subplots to a figure, it may be necessary to adjust their sizes to suit specific requirements. This question aims to achieve two subplots of different widths while maintaining the same height.

Traditionally, GridSpec and its colspan argument were used for this purpose. However, in Matplotlib 3.6.0 and later, it is now possible to directly specify width and height ratios as keyword arguments to plt.subplots and subplot_mosaic:

f, (a0, a1) = plt.subplots(1, 2, width_ratios=[3, 1])
f, (a0, a1, a2) = plt.subplots(3, 1, height_ratios=[1, 1, 3])

Another method involves using the subplots function and passing the width ratio using gridspec_kw:

f, (a0, a1) = plt.subplots(1, 2, gridspec_kw={'width_ratios': [3, 1]})

This approach offers greater customization options and allows for more complex subplot arrangements.

By utilizing these methods, users can easily create subplots with varying sizes within a figure, providing greater flexibility in data visualization.

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