From b29e473c2190f9a9b84d8288b932a5164557b8dd Mon Sep 17 00:00:00 2001
From: berak <px1704@web.de>
Date: Wed, 1 Jul 2015 15:32:37 +0200
Subject: [PATCH] fix plausability check, #issue 4429

---
 modules/ml/src/nbayes.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/ml/src/nbayes.cpp b/modules/ml/src/nbayes.cpp
index 5ca74acd91..221db93e24 100644
--- a/modules/ml/src/nbayes.cpp
+++ b/modules/ml/src/nbayes.cpp
@@ -313,7 +313,7 @@ public:
             CV_Error( CV_StsBadArg,
                      "The input samples must be 32f matrix with the number of columns = nallvars" );
 
-        if( samples.rows > 1 && _results.needed() )
+        if( (samples.rows > 1) && (! _results.needed()) )
             CV_Error( CV_StsNullPtr,
                      "When the number of input samples is >1, the output vector of results must be passed" );