How to rename a pandas Series?

Question

How can I change the name of a Series object?

Now-a-days, [you can call the `rename()` function if you do not want to modify your existing Series](https://stackoverflow.com/a/55295478/4909087) (for purposes such as method chaining). — cs95, Mar 22 '19 at 08:24

score 26 · Answer 1 · edited Jan 28 '19 at 19:51

You can do this by changing the name attribute of your subs object:

Assuming its name is 'Settle' and you want to change it to, say, 'Unsettle', just update the name attribute, like so:

In [16]: s = Series(randn(10), name='Settle')

In [17]: s
Out[17]:
0    0.434
1   -0.581
2   -0.263
3   -1.384
4   -0.075
5   -0.956
6    0.166
7    0.138
8   -0.770
9   -2.146
Name: Settle, dtype: float64

In [18]: s.name
Out[18]: 'Settle'

In [19]: s.name = 'Unsettle'

In [20]: s
Out[20]:
0    0.434
1   -0.581
2   -0.263
3   -1.384
4   -0.075
5   -0.956
6    0.166
7    0.138
8   -0.770
9   -2.146
Name: Unsettle, dtype: float64

In [21]: s.name
Out[21]: 'Unsettle'

score 9 · Answer 2 · answered Jun 30 '19 at 03:05

9

Not sure why no one mentioned rename

s.rename("new_name", inplace=True)

answered Jun 30 '19 at 03:05

Biarys

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using .rename() is the best way if you ask me, although I wouldn't use inplace=True, but rather do: series_ = series_.rename('new_name') – Sander van den Oord Sep 24 '19 at 12:13
why not `inplace=True`? – Paul Feb 25 '20 at 01:44
@SandervandenOord I believe under the hood pandas does exactly that – Biarys Dec 22 '20 at 16:05
1

Here's why you shouldn't use inplace=True: https://stackoverflow.com/a/59242208/3489155 – Sander van den Oord Dec 28 '20 at 14:58

Kamil Sindi · Answer 3 · 2015-12-29T03:13:26.770

5

s.reset_index(name="New_Name")

or

s.to_frame("New_Name")["New_Name"]

edited Dec 29 '15 at 03:13

answered Dec 24 '15 at 15:56

Kamil Sindi

19,100
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This converts the series to a DataFrame. – cs95 Mar 22 '19 at 08:17

score 0 · Answer 4 · edited Jan 28 '19 at 19:51

0

I finally renamed my Series object to 'Desired_Name' as follows

# Let my_object be the pandas.Series object
my_object.name = 'Desired_Name'

Then the automatically generated name that now is read in the legend now is 'Desired_Name' against 'Settle' previously.

edited Jan 28 '19 at 19:51

cs95

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answered Sep 01 '13 at 10:02

tagoma

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How to rename a pandas Series?

4 Answers4