diff options
Diffstat (limited to 'numpy/lib/histograms.py')
| -rw-r--r-- | numpy/lib/histograms.py | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/numpy/lib/histograms.py b/numpy/lib/histograms.py index f03f30fb0..6a66e4a73 100644 --- a/numpy/lib/histograms.py +++ b/numpy/lib/histograms.py @@ -220,6 +220,14 @@ _hist_bin_selectors = {'auto': _hist_bin_auto, def _ravel_and_check_weights(a, weights): """ Check a and weights have matching shapes, and ravel both """ a = np.asarray(a) + + # Ensure that the array is a "subtractable" dtype + if a.dtype == np.bool_: + warnings.warn("Converting input from {} to {} for compatibility." + .format(a.dtype, np.uint8), + RuntimeWarning, stacklevel=2) + a = a.astype(np.uint8) + if weights is not None: weights = np.asarray(weights) if weights.shape != a.shape: |