Add support for categorial dtype

holoviz · Jul 20, 2023 · 47b8932 · 47b8932
1 parent 6fb7721
commit 47b8932
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/holoviews/operation/datashader.py b/holoviews/operation/datashader.py
@@ -417,6 +417,9 @@ def _apply_datashader(self, dfdata, cvs_fn, agg_fn, agg_kwargs, x, y):
                 val = dfdata[col].values[data]
                 if val.dtype.kind == 'f':
                     val[neg1] = np.nan
+                elif isinstance(val.dtype, pd.CategoricalDtype):
+                    val = val.to_numpy()
+                    val[neg1] = "-"
                 elif val.dtype.kind == "O":
                     val[neg1] = "-"
                 else: