BUG: use permutation rather than shuffle

GaelVaroquaux · GaelVaroquaux · commit caea2079051b · 2012-05-06T20:15:29.000+02:00
diff --git a/sklearn/gaussian_process/gaussian_process.py b/sklearn/gaussian_process/gaussian_process.py
@@ -755,7 +755,7 @@ def minus_reduced_likelihood_function(log10t):
             # Iterate over all dimensions of theta allowing for anisotropy
             if verbose:
                 print("Now improving allowing for anisotropy...")
-            for i in self.random_state.shuffle(range(theta0.size)):
+            for i in self.random_state.permutation(theta0.size):
                 if verbose:
                     print "Proceeding along dimension %d..." % (i + 1)
                 self.theta0 = array2d(theta_iso)
