Split legend with more than 15 keys into columns

closes #757
has2k1 · Nov 26, 2024 · e0e971a · e0e971a
1 parent 6af648b
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diff --git a/doc/changelog.qmd b/doc/changelog.qmd
@@ -12,6 +12,11 @@ title: Changelog
 - When using [](:class:`~plotnine.geom_text`) with `adjust_text`, some sensible
   default arrow properties will be applied.
 
+- Changed the threshold number of keys for when the legend is split into multiple
+  columns from 20 to 15. This only applies in the default case when the user does
+  not set the number of rows or columns i.e. `guide_legend(nrow=None, ncol=None).
+  ({{< issue 757 >}})
+
 ## v0.14.2
 (2024-11-21)
 

diff --git a/plotnine/guides/guide_legend.py b/plotnine/guides/guide_legend.py
@@ -223,7 +223,7 @@ def _calculate_rows_and_cols(
             if elements.is_horizontal:
                 nrow = int(np.ceil(nbreak / 5))
             else:
-                ncol = int(np.ceil(nbreak / 20))
+                ncol = int(np.ceil(nbreak / 15))
 
         if nrow is None:
             ncol = cast(int, ncol)