October 2019
Beginner to intermediate
674 pages
16h 43m
English
Content preview from Mastering pandas - Second Edition
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Logical subsetting in pandas
In pandas, we do similar:
- Logical slicing:
In [33]: goal_stats_df[goal_stats_df['GoalsPerGame']>=0.5]
Out[33]: Club Player Goals GamesPlayedGoalsPerGame
0 Atletico Madrid Diego Costa 8 9 0.888889
5 Real Madrid Cristiano Ronaldo 17 11 1.545455
6 Real Madrid Gareth Bale 6 12 0.500000
16 Chelsea Demba Ba 3 6 0.500000
- DataFrame.query() operator:
In [36]: goal_stats_df.query('GoalsPerGame>= 0.5')
Out[36]:
Club Player Goals GamesPlayedGoalsPerGame
0 Atletico Madrid Diego Costa 8 9 0.888889
5 Real Madrid Cristiano Ronaldo 17 11 1.545455
6 Real Madrid Gareth Bale 6 12 0.500000
16 Chelsea Demba Ba 3 6 0.500000
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