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oldoc63 merged 1 commit into from
Oct 20, 2021
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Conditionals inside loc #181 #185

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30 changes: 9 additions & 21 deletions pandas/script.py
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Expand Up @@ -126,36 +126,24 @@

reviews.set_index('title')

#We often need to ask questions based on conditions. Suppose that we're interested specifically in better-than-average wines produced in Italy. We can start by checking if each wine is Italian or not:

reviews.country == 'Italy'

#Just booleans, wright? Now use it inside loc:

reviews.loc[reviews.country == 'Italy']

#Show all the rows with Italy

#We also wanted to know which ones are better than average. Wines are reviewed on a 80-to-100 point scale, so this could mean wines that accrued at least 90 points. We can use the ampersand (&) to bring the two questions together:

reviews.loc[(reviews.country == 'Italy') & (reviews.points >= 90)]

#Suppose we'll buy any wine that's made in Italy or which is rated above average. For this we use a pipe (|):























reviews.loc[(reviews.country == 'Italy') | (reviews.points >= 90)]



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