Fixed bug in extracting prior samples for cmdstanpy. (#979)

arviz-devs · Dec 29, 2019 · f4f68d9 · f4f68d9
1 parent 8678248
commit f4f68d9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arviz/data/io_cmdstanpy.py b/arviz/data/io_cmdstanpy.py
@@ -156,7 +156,7 @@ def prior_to_xarray(self):
             ]
 
         valid_cols = [col for col in columns if col not in set(prior_predictive)]
-        data = _unpack_frame(self.posterior.sample, columns, valid_cols)
+        data = _unpack_frame(self.prior.sample, columns, valid_cols)
         return dict_to_dataset(data, library=self.cmdstanpy, coords=self.coords, dims=self.dims)
 
     @requires("prior")