multiply column of dataframe by number
#Multiply the values of column_name by 100
df.column_name.mul(100)multiply column of dataframe by number
#Multiply the values of column_name by 100
df.column_name.mul(100)pandas create a new column based on condition of two columns
conditions = [
df['gender'].eq('male') & df['pet1'].eq(df['pet2']),
df['gender'].eq('female') & df['pet1'].isin(['cat', 'dog'])
]
choices = [5,5]
df['points'] = np.select(conditions, choices, default=0)
print(df)
gender pet1 pet2 points
0 male dog dog 5
1 male cat cat 5
2 male dog cat 0
3 female cat squirrel 5
4 female dog dog 5
5 female squirrel cat 0
6 squirrel dog cat 0Copyright © 2021 Codeinu
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