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# pandas.DataFrame.set_axis

DataFrame.set_axis(labels, *, axis=0, copy=None)

  Assign desired index to given axis.

  Indexes for column or row labels can be changed by assigning a list-like or Index.

  Parameters:
    labelslist-like, Index

      The values for the new index.

    axis{0 or ‘index’, 1 or ‘columns’}, default 0

      The axis to update. The value 0 identifies the rows. For Series this parameter is unused and defaults to 0.

    copybool, default True

      Whether to make a copy of the underlying data.

      Note

      The copy keyword will change behavior in pandas 3.0. Copy-on-Write will be enabled by default, which means that all methods with a copy keyword will use a lazy copy mechanism to defer the copy and ignore the copy keyword. The copy keyword will be removed in a future version of pandas.

      You can already get the future behavior and improvements through enabling copy on write `pd.options.mode.copy_on_write = True`

  Returns:
    DataFrame

      An object of type DataFrame.

  See also

  `DataFrame.rename_axis`

    Alter the name of the index or columns.

  Examples

      >>> df = pd.DataFrame({"A": [1, 2, 3], "B": [4, 5, 6]})

  Change the row labels.

      >>> df.set_axis(['a', 'b', 'c'], axis='index')
         A  B
      a  1  4
      b  2  5
      c  3  6

  Change the column labels.

      >>> df.set_axis(['I', 'II'], axis='columns')
         I  II
      0  1   4
      1  2   5
      2  3   6