Index: trunk/psLib/src/dataManip/psStats.c
===================================================================
--- trunk/psLib/src/dataManip/psStats.c	(revision 2739)
+++ trunk/psLib/src/dataManip/psStats.c	(revision 2762)
@@ -9,6 +9,6 @@
  *  @author GLG, MHPCC
  *
- *  @version $Revision: 1.103 $ $Name: not supported by cvs2svn $
- *  @date $Date: 2004-12-16 23:04:18 $
+ *  @version $Revision: 1.104 $ $Name: not supported by cvs2svn $
+ *  @date $Date: 2004-12-20 21:39:42 $
  *
  *  Copyright 2004 Maui High Performance Computing Center, University of Hawaii
@@ -793,7 +793,10 @@
         }
     }
-    if (countInt <= 1) {
+    if (countInt == 0) {
         stats->sampleStdev = NAN;
-        psLogMsg(__func__, PS_LOG_WARN, "WARNING: p_psVectorSampleStdev(): no valid psVector elements.  Setting stats->sampleStdev = NAN.\n");
+        psLogMsg(__func__, PS_LOG_WARN, "WARNING: p_psVectorSampleStdev(): no valid psVector elements (%d).  Setting stats->sampleStdev = NAN.\n", countInt);
+    } else if (countInt == 1) {
+        stats->sampleStdev = 0.0;
+        psLogMsg(__func__, PS_LOG_WARN, "WARNING: p_psVectorSampleStdev(): only one valid psVector elements (%d).  Setting stats->sampleStdev = 0.0.\n", countInt);
     } else {
         countFloat = (float)countInt;