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Drawing the axis line in Matplotlib

Matplotlib
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Cookbooks
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Axes Cookbook
schedule Sep 6, 2022
Last updated
local_offer PythonMatplotlib
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To draw the axis line in Matplotlib, use the axhline(~) and axvline(~) methods:

plt.axhline(0) #x-axis line
plt.axvline(0) #y-axis line
plt.xlim(-5,5)
plt.ylim(-5,5)
plt.show()

The output is as follows:

Changing transparency

Usually, you want the axis lines to be slightly transparent, so here's some code for that:

plt.axhline(0, color="blue", alpha=0.3)
plt.axvline(0, color="blue", alpha=0.3)
plt.xlim(-5,5)
plt.ylim(-5,5)
plt.show()

The output is as follows:

robocat
Published by Isshin Inada
Edited by 0 others
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