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-rw-r--r--src/python/gudhi/wasserstein/wasserstein.py4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/python/gudhi/wasserstein/wasserstein.py b/src/python/gudhi/wasserstein/wasserstein.py
index b37d30bb..fe001c37 100644
--- a/src/python/gudhi/wasserstein/wasserstein.py
+++ b/src/python/gudhi/wasserstein/wasserstein.py
@@ -165,9 +165,9 @@ def wasserstein_distance(X, Y, matching=False, order=1., internal_p=np.inf, enab
# empty arrays are not handled properly by the helpers, so we avoid calling them
if len(pairs_X_Y):
dists.append((Y_orig[pairs_X_Y[:, 1]] - X_orig[pairs_X_Y[:, 0]]).norms.lp(internal_p, axis=-1).norms.lp(order))
- if len(pairs_X_diag):
+ if len(pairs_X_diag[0]):
dists.append(_perstot_autodiff(X_orig[pairs_X_diag], order, internal_p))
- if len(pairs_Y_diag):
+ if len(pairs_Y_diag[0]):
dists.append(_perstot_autodiff(Y_orig[pairs_Y_diag], order, internal_p))
dists = [dist.reshape(1) for dist in dists]
return ep.concatenate(dists).norms.lp(order).raw