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We can manipulate the index in any way we see fit #181 #184

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oldoc63 merged 1 commit into from
Oct 20, 2021
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We can manipulate the index in any way we see fit #181 #184

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4 changes: 4 additions & 0 deletions pandas/script.py
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#This is particularly confusing when the DataFrame index is a simple numerical list, e.g. 0,...,1000. In this case df.iloc[0:1000] will return 1000 entries, while df.loc[0:1000] return 1001 of them! To get 1000 elements using loc, you will need to go one lower and ask for df.loc[0:999].

#Label-based selection derives its power from the labels in the index. Critically, the index we use is not immutable. We can manipulate the index in any way we see fit.

#The set_index() method can be used to do the job. Here is what happens when we set_index to the title field:

reviews.set_index('title')



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