The code snippet `fig, ax = plt.subplots(layout='tight')` is a command...

The code snippet fig, ax = plt.subplots(layout='tight') is a command often used in Python with the matplotlib.pyplot library to create a figure and a set of subplots (axes). Here's what it does:

1. plt.subplots():

   • This function creates a figure (fig) and a grid of subplots (axes), returning the figure object (fig) and the axes object(s) (ax).
   • By default, it creates a single subplot, but you can customize the number of rows and columns of subplots by adding additional parameters.

2. layout='tight':

   • The layout='tight' parameter is a way to automatically adjust the spacing between subplots or elements within the figure so that they fit well and do not overlap.
   • It ensures that the axes, labels, titles, and other elements are nicely spaced without manual adjustment.
   • This feature is available in Matplotlib versions 3.4.0 and later.

3. Objects returned:

   • fig: Represents the entire figure (the container that holds all elements, including the subplots, axes, and decorations).
   • ax: Represents the axes (i.e., the plotting area where the data is drawn).

Key Takeaway:

This code initializes a figure and creates one subplot, while ensuring that everything inside the figure is spaced appropriately without overlapping. You can further use fig and ax for customization or plotting data.