Index: /issm/trunk/src/m/classes/public/plot/processdata.m
===================================================================
--- /issm/trunk/src/m/classes/public/plot/processdata.m	(revision 5122)
+++ /issm/trunk/src/m/classes/public/plot/processdata.m	(revision 5123)
@@ -13,5 +13,5 @@
 
 %check format
-if (iscell(data) | isempty(data) | length(data)==0 | (length(data)==1 & isnan(data))),
+if (iscell(data) | isempty(data) | length(data)==0 | (length(data)==1 & ~isstruct(data) & isnan(data))),
 	error('plotmodel error message: data provided is empty');
 end