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Filling in the area above a curve in Matplotlib

schedule Aug 10, 2023
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PythonMatplotlib
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To fill in the area above a curve in Matplotlib, use the plt.fill_between(~) method:

x = np.linspace(0, 5, 1000)
plt.plot(x, 2*x)

# Fill area above curve
x_fill = np.linspace(2, 4, 1000)
plt.fill_between(x_fill, 2*x_fill, y2=10, alpha=0.5)
plt.show()

Here, the four parameters we are supplying to the fill_between(~) method are as follows:

  • The x-values to shade

  • The lower bound of the y-values to shade

  • The upper bound of the y-values to shade

  • The transparency of the shaded area

This gives us the following:

robocat
Published by Isshin Inada
Edited by 0 others
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