How to Specify the Number of Decimal Digits When Drawing DataFrame in matplotlib

I have saved the Pandas DataFrame in the image in matplotlib by referring to the site below.
I am having trouble formatting the number of decimal places.
Could you tell me how to display it in two decimal places?

Sites referenced: https://tedukapm.tech/python/tableoutput/

import matplotlib.pyplot as plt
import pandas aspd

df = pd.DataFrame(
    data = [
        {'Column 1':1.25, 'Column 2': 0.58},
        {'Column 1': 0.10, 'Column 2': 0.20}# ← I want to fill in zero and display it in two decimal places.
    ],
    index=['xx', 'yy']
)
df.style.set_precision(2)
df.style.format('{:.2%}', na_rep='-')
display(df)

config,ax=plt.subplots()# in inches
ax.axis('off')
ax.axis('tight')

arg_map = {
    'cellText': df.values,
    'colLabels': df.columns,
    'loc': 'center',
    'bbox': [0,0,1,1],
}
table=ax.table(**arg_map)
plt.savefig('image.png')

Here are the results of the results.
The top is the result of display(df), and the bottom is the result of plt.savefig(...).
I would like to display the value of the second line at the bottom in two decimal places.(It would be even better if you could format each column.)

python python3 matplotlib

2022-11-08 23:21

1 Answers

arg_map={
    'cellText': df.applymap('{:2f}'.format).values,
    'colLabels': df.columns,
    'loc': 'center',
    'bbox': [0,0,1,1],
}
table=ax.table(**arg_map)
plt.savefig('image.png')

2022-11-08 23:43

If you have any answers or tips

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