#### Previous topic

scipy.cluster.hierarchy.num_obs_linkage

#### Next topic

Constants (`scipy.constants`)

# scipy.cluster.hierarchy.set_link_color_palette

`scipy.cluster.hierarchy.``set_link_color_palette`(palette)

  Set list of matplotlib color codes for use by dendrogram.

  Note that this palette is global (i.e. setting it once changes the colors for all subsequent calls to `dendrogram`) and that it affects only the the colors below `color_threshold`.

  Note that `dendrogram` also accepts a custom coloring function through its `link_color_func` keyword, which is more flexible and non-global.

  Parameters:

  palette : list of str or None

  > A list of matplotlib color codes. The order of the color codes is the order in which the colors are cycled through when color thresholding in the dendrogram.

  > If `None`, resets the palette to its default (which is `['g', 'r', 'c', 'm', 'y', 'k']`).

  Returns: | None

  See also

  `dendrogram`

  Notes

  Ability to reset the palette with `None` added in Scipy 0.17.0.

  Examples

      >>> from scipy.cluster import hierarchy
      >>> ytdist = np.array([662., 877., 255., 412., 996., 295., 468., 268., 400.,
      ...                    754., 564., 138., 219., 869., 669.])
      >>> Z = hierarchy.linkage(ytdist, 'single')
      >>> dn = hierarchy.dendrogram(Z, no_plot=True)
      >>> dn['color_list']
      ['g', 'b', 'b', 'b', 'b']
      >>> hierarchy.set_link_color_palette(['c', 'm', 'y', 'k'])
      >>> dn = hierarchy.dendrogram(Z, no_plot=True)
      >>> dn['color_list']
      ['c', 'b', 'b', 'b', 'b']
      >>> dn = hierarchy.dendrogram(Z, no_plot=True, color_threshold=267,
      ...                           above_threshold_color='k')
      >>> dn['color_list']
      ['c', 'm', 'm', 'k', 'k']

  Now reset the color palette to its default:

      >>> hierarchy.set_link_color_palette(None)