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I would like to render a DataFrame as in Excel when using the Graded color formatting:

enter image description here

I'm not able to get similar result with Pandas (v0.23.0) style:

import pandas as pd
import numpy as np

shape = (3,3)

np.random.seed(0)
df=pd.DataFrame(np.random.uniform(0.,144, size=9).reshape(shape))
df.iloc[0,0] = np.nan
df.iloc[1,1] = 144
df.iloc[0,2] = 0
df[3] = 144

df.style.background_gradient(cmap='RdYlGn').highlight_null('white')

This is what I get:

enter image description here

Any idea?

Thanks, Greg


EDIT

This solution worked:

import matplotlib.pyplot as plt
from matplotlib import colors

def background_gradient(s, m, M, cmap='PuBu', low=0, high=0):
    rng = M - m
    norm = colors.Normalize(m - (rng * low),
                            M + (rng * high))
    normed = norm(s.values)
    c = [colors.rgb2hex(x) for x in plt.cm.get_cmap(cmap)(normed)]
    return ['background-color: %s' % color for color in c]

df.style.apply(background_gradient,
               cmap='RdYlGn',
               m=df.min().min(),
               M=144).highlight_null('white')
leroygr
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