How can I plot a histogram such that the heights of the bars sum to 1 in matplotlib?

MatplotlibServer Side ProgrammingProgramming

In plt.hist() method, stacked=True could help to get the heights of the bars sum to 1.

Steps

  • Create a list of numbers.

  • Using plt.hist(), we can draw the histogram.

  • stacked : bool, default: False

    If "True", multiple data are stacked on top of each other If ``False`` multiple data are arranged side by side if histtype is 'bar' or on top of each other if histtype is 'step'.

  • density : bool, default: False

    If "True", draw and return a probability density: each bin will display the bin's raw count divided by the total number of counts *and the bin width*.

  • To show the figure, use the plt.show() method.

Example

from matplotlib import pyplot as plt

x = [1, 4, 16, 64, 256]

# stacked and density are true then the sum of the histograms is normalized to 1.
plt.hist(x, 10, stacked=True, density=True)
plt.show()

Output

raja
Published on 16-Mar-2021 10:41:58
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