Pandas统计计算和描述
import numpy as np
import pandas as pd
常用的统计计算
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
统计描述
df_obj.describe()
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