Answers for "pandas multiple all values in column by 2"

2

how to filter pandas dataframe column with multiple values

# Multiple Criteria dataframe filtering
movies[movies.duration >= 200]
# when you wrap conditions in parantheses, you give order
# you do those in brackets first before 'and'
# AND
movies[(movies.duration >= 200) & (movies.genre == 'Drama')]

# OR 
movies[(movies.duration >= 200) | (movies.genre == 'Drama')]

(movies.duration >= 200) | (movies.genre == 'Drama')

(movies.duration >= 200) & (movies.genre == 'Drama')

# slow method
movies[(movies.genre == 'Crime') | (movies.genre == 'Drama') | (movies.genre == 'Action')]

# fast method
filter_list = ['Crime', 'Drama', 'Action']
movies[movies.genre.isin(filter_list)]
Posted by: Guest on February-10-2021
0

dataframe isin multiple columns

pd.merge(df2, df1, how='inner')
#         col1  col2
# 0      pizza   boy
# 1      pizza  girls
# 2  ice cream   boy
Posted by: Guest on August-13-2021

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