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How can I display an np.array with pylab.imshow() using Matplotlib?
To display an np.array with imshow(), we can take the following steps
- Set the figure size and adjust the padding between and around the subplots.
- Make a 2D data raster using an np.array.
- Display the data as an image, i.e., on a 2D regular raster.
- To display the figure, use show() method.
Example
import numpy as np from matplotlib import pyplot as plt plt.rcParams["figure.figsize"] = [7.50, 3.50] plt.rcParams["figure.autolayout"] = True data = np.array( [[0.1, 0.7, 0.6, 0.3], [0.2, 0.6, 0.5, 0.2], [0.8, 0.3, 0.80, 0.01], [0.3, 0.4, 0.2, 0.1]] ) plt.imshow(data, interpolation="nearest", cmap="RdYlGn_r") plt.show()
Output
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