From d342031c6d0e00840575fb01ab2ea136e674d600 Mon Sep 17 00:00:00 2001
From: Jason Stover <jhs@debs.(none)>
Date: Sat, 11 Jul 2009 15:45:49 -0400
Subject: [PATCH] Return 0.0 for mean of a categorical variable. Fixes bug
 mentioned in bug report 26861.

---
 src/math/linreg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/math/linreg.c b/src/math/linreg.c
index 8028697c..baf9cb73 100644
--- a/src/math/linreg.c
+++ b/src/math/linreg.c
@@ -641,7 +641,7 @@ double pspp_linreg_get_indep_variable_mean (pspp_linreg_cache *c, const struct v
       coef = pspp_linreg_get_coeff (c, v, NULL);
       return pspp_coeff_get_mean (coef);
     }
-  return GSL_NAN;
+  return 0.0;
 }
 
 void pspp_linreg_set_indep_variable_mean (pspp_linreg_cache *c, const struct variable *v, 
-- 
2.30.2