Syntax error How to plot data into imshow() with custom colormap in Matplotlib?

How to plot data into imshow() with custom colormap in Matplotlib?

To plot data into imshow() with custom colormap in matplotlib, we can take the following steps−

  • Set the figure size and adjust the padding between and around the subplots.
  • Create random data points using numpy.
  • Generate a colormap object from a list of colors.
  • Display the data as an image, i.e., on a 2D regular raster
  • To display the figure, use show() method.

Example

from matplotlib import pyplot as plt
from matplotlib.colors import ListedColormap
import numpy as np
plt.rcParams["figure.figsize"] = [7.50, 3.50]
plt.rcParams["figure.autolayout"] = True
data = np.random.rand(5, 5)
cmap = ListedColormap(['r', 'g', 'b'])
plt.imshow(data, cmap=cmap)
plt.show()

Output

Updated on: 2021-05-15T12:29:55+05:30

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