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How to plot a multivariate function in Python Matplotlib?
To plot a multivariate function in Python, we can take the following steps −
Steps
Set the figure size and adjust the padding between and around the subplots.
Create random x, y and z data points using numpy.
Create a figure and a set of subplots.
Create a scatter plot with x, y and z data points.
Create a colorbar for a ScalarMappable instance, s.
To display the figure, use show() method.
Example
import numpy as np import matplotlib.pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True def func(x, y): return 3 * x + 4 * y - 2 + np.random.randn(30) x, y = np.random.randn(2, 30) y *= 100 z = func(x, y) fig, ax = plt.subplots() s = ax.scatter(x, y, c=z, s=100, marker='*', cmap='plasma') fig.colorbar(s) plt.show()
Output
It will produce the following output −
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