From 405f352dc562eb17a2d6d7ca17c2ce14b19f2668 Mon Sep 17 00:00:00 2001
From: Rémi Flamary <remi.flamary@gmail.com>
Date: Fri, 4 Nov 2016 10:10:44 +0100
Subject: add mapping estimation with kernels works!

---
 ot/utils.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'ot/utils.py')

diff --git a/ot/utils.py b/ot/utils.py
index 47fe77f..d3df8fa 100644
--- a/ot/utils.py
+++ b/ot/utils.py
@@ -9,7 +9,7 @@ from scipy.spatial.distance import cdist
 def kernel(x1,x2,method='gaussian',sigma=1,**kwargs):
     """Compute kernel matrix"""
     if method.lower() in ['gaussian','gauss','rbf']:
-        K=np.exp(dist(x1,x2)/(2*sigma**2))
+        K=np.exp(-dist(x1,x2)/(2*sigma**2))
     return K
 
 def unif(n):
-- 
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