Plotting CDF of a pandas series in python

Question

Is there a way to do this? I cannot seem an easy way to interface pandas series with plotting a CDF.

Answer 1

I came here looking for a plot like this with bars and a CDF line:

It can be achieved like this:

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt
series = pd.Series(np.random.normal(size=10000))
fig, ax = plt.subplots()
ax2 = ax.twinx()
n, bins, patches = ax.hist(series, bins=100, normed=False)
n, bins, patches = ax2.hist(
    series, cumulative=1, histtype='step', bins=100, color='tab:orange')
plt.savefig('test.png')

If you want to remove the vertical line, then it's explained how to accomplish that here. Or you could just do:

ax.set_xlim((ax.get_xlim()[0], series.max()))

I also saw an elegant solution here on how to do it with seaborn.