BUG: EMDTransport parameter log unusable

Author: tardyb

ot/da.py

@@ -1332,13 +1332,14 @@ class EMDTransport(BaseTransport):
            on Pattern Analysis and Machine Intelligence , vol.PP, no.99, pp.1-1
     """
 
-    def __init__(self, metric="sqeuclidean", norm=None,
+    def __init__(self, metric="sqeuclidean", norm=None,log=False,
                  distribution_estimation=distribution_estimation_uniform,
                  out_of_sample_map='ferradans', limit_max=10,
                  max_iter=100000):
-
+        
         self.metric = metric
         self.norm = norm
+        self.log = log
         self.limit_max = limit_max
         self.distribution_estimation = distribution_estimation
         self.out_of_sample_map = out_of_sample_map
@@ -1371,11 +1372,16 @@ class label
 
         super(EMDTransport, self).fit(Xs, ys, Xt, yt)
 
-        # coupling estimation
-        self.coupling_ = emd(
-            a=self.mu_s, b=self.mu_t, M=self.cost_, numItermax=self.max_iter
-        )
+        returned_ = emd(
+            a=self.mu_s, b=self.mu_t, M=self.cost_, numItermax=self.max_iter,
+            log=self.log)
 
+        # coupling estimation
+        if self.log:
+            self.coupling_, self.log_ = returned_
+        else:
+            self.coupling_ = returned_
+            self.log_ = dict()
         return self