Index: mttroot/mtt/bin/trans/dat22sg.sh
==================================================================
--- mttroot/mtt/bin/trans/dat22sg.sh
+++ mttroot/mtt/bin/trans/dat22sg.sh
@@ -100,15 +100,15 @@
 
     [u_names,y_names,x_names] = ${sys}_struc;
     ncol = size(${vec}_names)(1);
 
     load ("${sys}_odes.dat2");
-    nrow = size(MTT_data)(1);
+    nrow = size(mtt_data)(1);
 
     # write Time
     for r = 1:nrow
-	write_cell (r-1,0,MTT_data(r,1));
+	write_cell (r-1,0,mtt_data(r,1));
     endfor
 
     if ("${vec}" == "y")
 	offset = 1;
     elseif ("${vec}" == "x")
@@ -115,11 +115,11 @@
 	offset = size(y_names)(1);
     endif
 
     for r = 1:nrow
 	for c = 1:ncol
-	    write_cell (r-1,c,MTT_data(r,c+offset));
+	    write_cell (r-1,c,mtt_data(r,c+offset));
 	endfor
     endfor
 EOF
 }
 
@@ -126,11 +126,11 @@
 file=${sys}_odes.sg
 
 NX=`mtt_getsize ${sys} x`
 NY=`mtt_getsize ${sys} y`
 NTMP=`wc -l ${sys}_odes.dat2 | awk '{print $1}'`
-NROW=`expr ${NTMP} - 4`		# 4 comment lines in MTT_data
+NROW=`expr ${NTMP} - 4`		# 4 comment lines in mtt_data
 
 {
     write_project_header
     # states
     write_worksheet_header	"X_${sys}" ${NX} ${NROW}

Index: mttroot/mtt/bin/trans/make_ode2odes
==================================================================
--- mttroot/mtt/bin/trans/make_ode2odes
+++ mttroot/mtt/bin/trans/make_ode2odes
@@ -7,10 +7,14 @@
 ###############################################################
 ## Version control history
 ###############################################################
 ## $Id$
 ## $Log$
+## Revision 1.57  2001/04/01 03:38:54  geraint
+## Reset row to zero after write to file, ready for subsequent runs.
+## Eliminates SIGSEGV in Octave when _ode2odes called multiple times.
+##
 ## Revision 1.56  2001/03/30 15:13:58  gawthrop
 ## Rationalised simulation modes to each return mtt_data
 ##
 ## Revision 1.55  2001/03/27 13:21:59  geraint
 ## Octave version compatibility for save_ascii_data(_for_plotting).
@@ -660,11 +664,11 @@
   static int row;
 
   if (dump_data)
     {
        Matrix written_data = data.extract (0, 0, row-1, data.cols ()-1);
-       $save_ascii_data_function (file, written_data, "MTT_data");
+       $save_ascii_data_function (file, written_data, "mtt_data");
        return;
     }
 
   const int nx = x.length (), ny = y.length ();
   register int col = 0;
@@ -682,11 +686,11 @@
   row++;
 
   if (nrows == row)
     {
 #ifdef STANDALONE
-      $save_ascii_data_function (file, data, "MTT_data");
+      $save_ascii_data_function (file, data, "mtt_data");
 //    cout << data << endl;
 #else // ! STANDALONE
   set_global_value ("MTT_data", data);
 #endif
     row = 0;