From 0774a97ff29339dbe87cb69c5745196d800d6584 Mon Sep 17 00:00:00 2001
From: John Darrington <john@darrington.wattle.id.au>
Date: Thu, 28 Jul 2011 12:16:14 +0200
Subject: [PATCH] Fix crash in Correlations

---
 src/math/categoricals.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/math/categoricals.c b/src/math/categoricals.c
index f1bd0902..d3aa3728 100644
--- a/src/math/categoricals.c
+++ b/src/math/categoricals.c
@@ -245,6 +245,8 @@ categoricals_destroy (struct categoricals *cat)
 {
   struct variable_node *vn = NULL;
   int i;
+  if (NULL == cat)
+    return;
   for (i = 0; i < cat->n_iap; ++i)
     {
       struct interaction_value *iv = NULL;
-- 
2.30.2