Index: /issm/trunk-jpl/src/m/solve/WriteData.m
===================================================================
--- /issm/trunk-jpl/src/m/solve/WriteData.m	(revision 16422)
+++ /issm/trunk-jpl/src/m/solve/WriteData.m	(revision 16423)
@@ -200,4 +200,8 @@
 	%first get length of string array: 
 	num=numel(data);
+	if isnumeric(data) & num==1 & isnan(data),
+		num = 0;
+	end
+
 	%now get length of record: 
 	recordlength=4+4; %for length of array + code