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matplotlib.pyplot.subplot

matplotlib.pyplot.subplot(*args, **kwargs)

Return a subplot axes positioned by the given grid definition.

Typical call signature:

subplot(nrows, ncols, plot_number)

Where nrows and ncols are used to notionally split the figure into nrows * ncols sub-axes, and plot_number is used to identify the particular subplot that this function is to create within the notional grid. plot_number starts at 1, increments across rows first and has a maximum of nrows * ncols.

In the case when nrows, ncols and plot_number are all less than 10, a convenience exists, such that the a 3 digit number can be given instead, where the hundreds represent nrows, the tens represent ncols and the units represent plot_number. For instance:

subplot(211)

produces a subaxes in a figure which represents the top plot (i.e. the first) in a 2 row by 1 column notional grid (no grid actually exists, but conceptually this is how the returned subplot has been positioned).

Note

Creating a subplot will delete any pre-existing subplot that overlaps with it beyond sharing a boundary:

import matplotlib.pyplot as plt
# plot a line, implicitly creating a subplot(111)
plt.plot([1,2,3])
# now create a subplot which represents the top plot of a grid
# with 2 rows and 1 column. Since this subplot will overlap the
# first, the plot (and its axes) previously created, will be removed
plt.subplot(211)
plt.plot(range(12))
plt.subplot(212, facecolor='y') # creates 2nd subplot with yellow background

If you do not want this behavior, use the add_subplot() method or the axes() function instead.

Keyword arguments:

facecolor:
The background color of the subplot, which can be any valid color specifier. See matplotlib.colors for more information.
polar:
A boolean flag indicating whether the subplot plot should be a polar projection. Defaults to False.
projection:
A string giving the name of a custom projection to be used for the subplot. This projection must have been previously registered. See matplotlib.projections.

See also

axes()
For additional information on axes() and subplot() keyword arguments.
gallery/pie_and_polar_charts/polar_scatter.py
For an example

Example:

(Source code, png, pdf)

../../_images/subplot.png