Added a couple of debug prints

Author: pcubillos

mc3/mcmc_driver.py

@@ -362,6 +362,9 @@ def random_pick(kickoff):
 
     # Evaluate model for best fitting parameters:
     posterior = ms.update_output(output, chains[0], hsize)
+    # DEBUG
+    if posterior is None:
+        posterior = np.zeros(1)
 
     # Print out Summary:
     Z = output['posterior']

mc3/stats/stats.py

@@ -836,6 +836,9 @@ def update_output(output, chain, hsize):
 
     # Stop here if there are fewer samples than burned samples:
     if not np.all(chain.chainsize > (zburn+hsize)):
+        # DEBUG
+        print(chain.chainsize)
+        print(zburn+hsize)
         return
 
     posterior, _, zmask = mu.burn(