Index: mttroot/mtt/lib/comp/simple/SS_eqn.m
==================================================================
--- mttroot/mtt/lib/comp/simple/SS_eqn.m
+++ mttroot/mtt/lib/comp/simple/SS_eqn.m
@@ -29,10 +29,13 @@
 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % %% Version control history
 % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % %% $Id$
 % %% $Log$
+% %% Revision 1.25  2003/01/07 18:09:21  geraint
+% %% More informative error message.
+% %%
 % %% Revision 1.24  1999/10/22 02:20:32  peterg
 % %% Changed error handleing of number of attributes >2
 % %%
 % %% Revision 1.23  1998/12/03 16:46:16  peterg
 % %% Deblanked attributes so that zero attribute works.
@@ -209,11 +212,11 @@
 	fprintf(filenum, "%s := %s;\n", ...
 		varname(sname, bond_number,1), effort_attribute);
       else % Sensor
 	if strcmp(effort_attribute, "zero") %Zero output
 	  zero_outputs = zero_outputs + 1;
-	  fprintf(filenum, "MTTyz%d := %s;\n", ...
+	  fprintf(filenum, "MTTyz(%d,1) := %s;\n", ...
 		  zero_outputs, varname(sname, bond_number,1));
 	else
 	  mtt_error([effort_attribute, " not appropriate for an output (", name, ")"]);
 	end;
       end;
@@ -240,11 +243,11 @@
 	fprintf(filenum, "%s := %s;\n", ...
 		varname(sname, bond_number,-1), flow_attribute);
       else % Sensor
 	if strcmp(flow_attribute, "zero") %Zero output
 	  zero_outputs = zero_outputs + 1
-	  fprintf(filenum, "MTTyz%d := %s;\n", ...
+	  fprintf(filenum, "MTTyz(%d,1) := %s;\n", ...
 		  zero_outputs, varname(sname, bond_number,-1));
 	else
 	  mtt_error([flow_attribute, " not appropriate for an output (", name, ")"]);
 	end;
       end;