correct behavior when entire columns are zero

2009-12-31 10:30:44 +00:00 · 2009-12-31 10:30:44 +00:00 · eaa8176de1
parent 46a65d89df
commit eaa8176de1
1 changed files with 2 additions and 1 deletions
--- a/cpp/GaussianBayesNet.cpp
+++ b/cpp/GaussianBayesNet.cpp
@ -107,7 +107,8 @@ VectorConfig backSubstituteTranspose(const GaussianBayesNet& bn,
 	VectorConfig gy;
 	BOOST_FOREACH(GaussianConditional::shared_ptr cg, bn) {
 		const string& j = cg->key();
-		gy.insert(j,gx[j]); // initialize result
+		Vector gyj = gx.contains(j) ? gx[j] : zero(cg->dim());
+		gy.insert(j,gyj); // initialize result
 	}

 	// we loop from first-eliminated to last-eliminated