Multiple Plots in a same subplot using Matplotlib

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matplotlib_multiple_plots

Skill - Multiple Plots in a same subplot using Matplotlib

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Skills Required

Please make sure to have all the skills mentioned above to understand and execute the code mentioned below. Go through the above skills if necessary for reference or revision

Matplotlib is a plotting library in the scipy ecosystem of libraries.

In this post we will try to understand how to create multiple plots in the same subplot

Please make sure that you covered the post on basics

Example

import matplotlib.pyplot as plt

# create a plotting area and get the figure, axes handle in return
fig, ax = plt.subplots()

# plot some data
ax.plot([0,4,8,12], [6,8,4,2])

# plot again
ax.plot([0,3,9,12,15,18], [2,1,9,6,4,3])

# print plot
plt.show()

basic multiple plots output
So just by calling plot function on a single axes handle, we can add any number of plots to a single subplot.

More styled example

This example is the same as above, but adds some extra styling.
Please make sure you covered the styling plots post in order to understand this code.

import matplotlib.pyplot as plt

# create a plotting area and get the figure, axes handle in return
fig, ax = plt.subplots()

# set plot title
ax.set_title('Multiple plots example')

# set x and y labels
ax.set_xlabel('this is X-axis')
ax.set_ylabel('this is Y-axis')

# plot some data and get the line artist object in return
la1, = ax.plot([0,4,8,12], [6,8,4,2], color='#de689f')

# set label to line artist object for legend
la1.set_label('First Plot')

# plot again and get the line artist object in return
la2, = ax.plot([0,3,9,12,15,18], [2,1,9,6,4,3], color='#a155b9')

# set label to line artist object for legend
la2.set_label('Second Plot')

# set a marker style
la2.set_marker('o')

# enable legends
ax.legend()

# print plot
plt.show()

styled basic multiple plots output

Video

You can the video on this post here

Online Interpreter

Although we recommend to practice the above examples in Visual Studio Code, you can run these examples online at https://pynative.com/online-python-code-editor-to-execute-python-code/

Multiple plots example

Styled multiple plots example

References

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