Index: trunk/Ohana/src/opihi/mana/findrowpeaks.c
===================================================================
--- trunk/Ohana/src/opihi/mana/findrowpeaks.c	(revision 2938)
+++ trunk/Ohana/src/opihi/mana/findrowpeaks.c	(revision 40398)
@@ -23,4 +23,5 @@
 
   for (i = 1; i < Nrow - 1; i++) {
+    if (!isfinite(row[i])) continue; // ignore NAN values
     if (row[i] < threshold) continue;
     if (row[i] < row[i-1]) continue;