Index: trunk/pswarp/src/pswarpArguments.c
===================================================================
--- trunk/pswarp/src/pswarpArguments.c	(revision 12995)
+++ trunk/pswarp/src/pswarpArguments.c	(revision 13104)
@@ -26,8 +26,17 @@
 
     // chip selection is used to limit chips to be processed
-    if ((N = psArgumentGet (argc, argv, "-chip"))) {
-        psArgumentRemove (N, &argc, argv);
-        psMetadataAddStr (config->arguments, PS_LIST_TAIL, "CHIP_SELECTIONS", PS_DATA_STRING, "", argv[N]);
-        psArgumentRemove (N, &argc, argv);
+    if ((N = psArgumentGet(argc, argv, "-chip"))) {
+        psArgumentRemove(N, &argc, argv);
+        psMetadataAddStr(config->arguments, PS_LIST_TAIL, "CHIP_SELECTIONS", PS_DATA_STRING,
+                         "Only process these chips", argv[N]);
+        psArgumentRemove(N, &argc, argv);
+    }
+
+    // Statistics file
+    if ((N = psArgumentGet(argc, argv, "-stat"))) {
+        psArgumentRemove(N, &argc, argv);
+        psMetadataAddStr(config->arguments, PS_LIST_TAIL, "STATS", PS_DATA_STRING,
+                         "Filename for statistics of output image", argv[N]);
+        psArgumentRemove(N, &argc, argv);
     }