prevent sample shape for monte carlo methods

blei-lab · Mar 27, 2017 · 398e0a5 · 398e0a5
1 parent 2c53d8a
commit 398e0a5
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/edward/inferences/monte_carlo.py b/edward/inferences/monte_carlo.py
@@ -82,6 +82,9 @@ def __init__(self, latent_vars=None, data=None):
         if not isinstance(qz, Empirical):
           raise TypeError("Posterior approximation must consist of only "
                           "Empirical random variables.")
+        elif len(qz.get_sample_shape()) != 0:
+          raise ValueError("Empirical posterior approximations must have "
+                           "a scalar sample shape.")
 
     super(MonteCarlo, self).__init__(latent_vars, data)