Pandas get dummies()

1 개요

Pandas get_dummies()

import pandas as pd
import numpy as np

s = pd.Series(list('abca'))
s

pd.get_dummies(s)

s1 = ['a', 'b', np.nan]
s1

pd.get_dummies(s1)

pd.get_dummies(s1, dummy_na=True)

df = pd.DataFrame({'A': ['a', 'b', 'a'], 'B': ['b', 'a', 'c'],
                   'C': [1, 2, 3]})
df

pd.get_dummies(df, prefix=['col1', 'col2'])

pd.get_dummies(pd.Series(list('abcaa')))

pd.get_dummies(pd.Series(list('abcaa')), drop_first=True)

pd.get_dummies(pd.Series(list('abc')), dtype=float)

2 같이 보기

• Pandas Series.str.get_dummies()

3 참고

• https://pandas.pydata.org/docs/reference/api/pandas.get_dummies.html