Pandas統(tǒng)計計算和描述

import numpy as np
import pandas as pd

常用的統(tǒng)計計算

df_obj = pd.DataFrame(np.random.randn(5,4), columns = ['a', 'b', 'c', 'd'])
df_obj

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df_obj.sum()

a    0.827302
b   -2.022970
c    1.722957
d    2.859766
dtype: float64

df_obj.max()

a    0.544118
b    0.746669
c    1.420332
d    1.886597
dtype: float64

df_obj.min(axis=1)

0   -2.703075
1    0.211598
2   -0.831059
3    0.343832
4   -0.865607
dtype: float64

統(tǒng)計描述

df_obj.describe()

Paste_Image.png