Index: trunk/Ohana/src/opihi/cmd.data/plot.c
===================================================================
--- trunk/Ohana/src/opihi/cmd.data/plot.c	(revision 2598)
+++ trunk/Ohana/src/opihi/cmd.data/plot.c	(revision 2843)
@@ -9,5 +9,5 @@
   /* choose the appropriate graphing window */
   Ngraph = -1;
-  if (N = get_argument (argc, argv, "-n")) {
+  if ((N = get_argument (argc, argv, "-n"))) {
     remove_argument (N, &argc, argv);
     Ngraph = atof (argv[N]);
@@ -17,33 +17,33 @@
 
   /* evaluate various plotting options */
-  if (N = get_argument (argc, argv, "-lt")) {
+  if ((N = get_argument (argc, argv, "-lt"))) {
     remove_argument (N, &argc, argv);
     graphmode.ltype = atof(argv[N]);
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "-lw")) {
+  if ((N = get_argument (argc, argv, "-lw"))) {
     remove_argument (N, &argc, argv);
     graphmode.lweight = atof(argv[N]);
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "-pt")) {
+  if ((N = get_argument (argc, argv, "-pt"))) {
     remove_argument (N, &argc, argv);
     graphmode.ptype = atof(argv[N]);
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "+eb")) {
+  if ((N = get_argument (argc, argv, "+eb"))) {
     remove_argument (N, &argc, argv);
     graphmode.ebar = TRUE;
   }
-  if (N = get_argument (argc, argv, "-eb")) {
+  if ((N = get_argument (argc, argv, "-eb"))) {
     remove_argument (N, &argc, argv);
     graphmode.ebar = FALSE;
   }
-  if (N = get_argument (argc, argv, "-sz")) {
+  if ((N = get_argument (argc, argv, "-sz"))) {
     remove_argument (N, &argc, argv);
     graphmode.size = atof(argv[N]);
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "-c")) {
+  if ((N = get_argument (argc, argv, "-c"))) {
     remove_argument (N, &argc, argv);
     graphmode.color = GetColor (argv[N]);
@@ -51,5 +51,5 @@
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "-x")) {
+  if ((N = get_argument (argc, argv, "-x"))) {
     remove_argument (N, &argc, argv);
     graphmode.style = atof(argv[N]);
@@ -59,20 +59,20 @@
   /* decide on error bars */
   dxmvec = dxpvec = dymvec = dypvec = NULL;
-  if (N = get_argument (argc, argv, "-dx")) {
+  if ((N = get_argument (argc, argv, "-dx"))) {
     remove_argument (N, &argc, argv);
     if ((dxmvec = SelectVector (argv[N], OLDVECTOR, TRUE)) == NULL) return (FALSE);    
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "+dx")) {
+  if ((N = get_argument (argc, argv, "+dx"))) {
     remove_argument (N, &argc, argv);
     if ((dxpvec = SelectVector (argv[N], OLDVECTOR, TRUE)) == NULL) return (FALSE);    
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "-dy")) {
+  if ((N = get_argument (argc, argv, "-dy"))) {
     remove_argument (N, &argc, argv);
     if ((dymvec = SelectVector (argv[N], OLDVECTOR, TRUE)) == NULL) return (FALSE);    
     remove_argument (N, &argc, argv);
   }
-  if (N = get_argument (argc, argv, "+dy")) {
+  if ((N = get_argument (argc, argv, "+dy"))) {
     remove_argument (N, &argc, argv);
     if ((dypvec = SelectVector (argv[N], OLDVECTOR, TRUE)) == NULL) return (FALSE);