python get_dummies code example
Example 1: getting dummies and input them to pandas dataframe
note:
dummies = pd.get_dummies(df[['column_1']], drop_first=True)
df = pd.concat([df.drop(['column_1'],axis=1), dummies],axis=1)
note:for more that one coloum keep ading in the list
dummies = pd.get_dummies(df[['column_1', 'column_2','column_3']], drop_first=True)
df = pd.concat([df.drop(['column_1', 'column_1'],axis=1), dummies],axis=1)
Example 2: getting dummies for a column in pandas dataframe
note:
dummies = pd.get_dummies(df[['column_1']], drop_first=True)
note:for more that one coloum keep ading in the list
dummies = pd.get_dummies(df[['column_1', 'column_2','column_3']], drop_first=True)
Example 3: pd.get_dummies
>>> s = pd.Series(list('abca'))
>>> pd.get_dummies(s)
a b c
0 1 0 0
1 0 1 0
2 0 0 1
3 1 0 0