Python Pandas Dataframe 按列排序

Pandas Dataframe sort by a column

提问by Ayan Mitra

I have a Python Pandas Data Frame. The df has 2 columns, I would like to sort the df by the second column.

我有一个 Python Pandas 数据框。df 有 2 列，我想按第二列对 df 进行排序。

   Kappa_prod   Angle
0   0.004511    -5.457840
1   0.003977    -5.312861
2   0.004476    -5.311292
3   0.003644    -117.579594
4   0.003306    -117.542817

I would like to sort the df by Angle (ascending order).

我想按角度（升序）对 df 进行排序。

回答by Mohamed Ali JAMAOUI

You can use this:

你可以使用这个：

df.sort_values("Angle", inplace=True)

By default ascending=Trueis passed to the above call. For more information check the documentation here.

默认情况下ascending=True传递给上面的调用。有关更多信息，请查看此处的文档。