diff options
Diffstat (limited to 'ot/utils.py')
-rw-r--r-- | ot/utils.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ot/utils.py b/ot/utils.py index b71458b..b8a6f44 100644 --- a/ot/utils.py +++ b/ot/utils.py @@ -48,6 +48,11 @@ def kernel(x1, x2, method='gaussian', sigma=1, **kwargs): K = np.exp(-dist(x1, x2) / (2 * sigma**2)) return K +def laplacian(x): + """Compute Laplacian matrix""" + L = np.diag(np.sum(x, axis=0)) - x + return L + def unif(n): """ return a uniform histogram of length n (simplex) |