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# Grouping Series by its values in Pandas

*schedule*Aug 12, 2023

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Tags Python●Pandas

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To group the values of a Series, use the `groupby(~)`

method:

```
```

Here, note the following:

we see the value 6 corresponding to the index 3 because we are summing up all occurrences of the value of 3 (i.e. 3+3=6).

the syntax

`s.groupby(s)`

is slightly awkward - but we need to pass in`s`

as the argument since the`groupby(~)`

groups by the index instead of values by default.the

`groupby(~)`

returns a`SeriesGroupBy`

object, which has aggregate functions such as`sum()`

.

Published by Isshin Inada

Edited by 0 others

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