dataframe apply on 2 dataframe code example
Example 1: pandas apply function to column
df['a'] = df['a'].apply(lambda x: x + 1)
Example 2: apply a created function pandas
df['column']=df['column'].apply(function)
df['a'] = df['a'].apply(lambda x: x + 1)
df['column']=df['column'].apply(function)