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sun-data · Nov 12, 2024 · 19b93ed · 19b93ed
1 parent 60f32b0
commit 19b93ed
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/named_arrays/_named_array_functions.py b/named_arrays/_named_array_functions.py
@@ -741,6 +741,7 @@ def histogram2d(
         The bin specification of the histogram:
          * If `bins` is a dictionary, the keys are interpreted as the axis names
            and the values are the number of bins along each axis.
+           This dictionary must have exactly two keys.
          * If `bins` is a 2D Cartesian vector, each component of the vector
            represents the bin edges in each dimension.
     axis