import pyutil as pyu
pyu.get_local_pyinfo()

'conda env: ml312-2024; pyv: 3.12.7 | packaged by Anaconda, Inc. | (main, Oct  4 2024, 13:27:36) [GCC 11.2.0]'

print(pyu.ps2("pandas"))

pandas==2.2.3

import pandas as pd
import numpy as np

def histogram_intersection(a, b):
    v = np.minimum(a, b).sum().round(decimals=1)
    return v

df = pd.DataFrame([(.2, .3), (.0, .6), (.6, .0), (.2, .1)],
                  columns=['dogs', 'cats'])

cor_result = df.corr(method=histogram_intersection)

cor_result