Remove invisible boxplot outliers from the limit calculations

closes #814
has2k1 · Aug 1, 2024 · 29c77f3 · 29c77f3
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diff --git a/doc/changelog.qmd b/doc/changelog.qmd
@@ -31,6 +31,10 @@ title: Changelog
   set_option("figure_format", False)
   ```
 
+- For [](:class:`~plotnine.geom_boxplot`) when the outliers are made invisible
+  by giving them no shape, now they do not affect the limits of the plot.
+  ({{< issue 814 >}})
+
 ### New Features
 
 - [](:class:`~plotnine.geom_text`) has gained new aesthetics

diff --git a/plotnine/geoms/geom_boxplot.py b/plotnine/geoms/geom_boxplot.py
@@ -134,7 +134,12 @@ def setup_data(self, data: pd.DataFrame) -> pd.DataFrame:
             else:
                 data["width"] = resolution(data["x"], False) * 0.9
 
-        if "outliers" not in data:
+        if (
+            "outliers" not in data
+            # Remove outliers if they will not show so that the scale
+            # limits do not recognise them.
+            or self.params["outlier_shape"] in (None, "")
+        ):
             data["outliers"] = [[] for i in range(len(data))]
 
         # min and max outlier values

diff --git a/tests/baseline_images/test_geom_boxplot/no_outliers.png b/tests/baseline_images/test_geom_boxplot/no_outliers.png