Summary Stats Summary statistics

Summary statistics

The summary() function will return summary statistics if the column contains numeric values, and the count and frequency of top 5 most common values if the column contains non-numeric values. Summary can be used either on a single column, or on a whole dataframe.

It can also return stratified summary statistics using the by argument.

import epipy
import pandas as pd

df = pd.DataFrame({'Age' : [10, 12, 14], 'Group' : ['A', 'B', 'B'] })
epipy.summary(df.Age)

returns:

count       3
missing     0
min        10
median     12
mean       12
std         2
max        14
dtype: float64

and:

epipy.summary(df.Group)

returns:

   count      freq
B      2  0.666667
A      1  0.333333

finally:

epipy.summary(df.Age, by=df.Group)

returns:

   count  missing  min  median  mean      std   max
A      1        0   10      10    10       NaN   10
B      2        0   12      13    13  1.414214   14

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