Index: docs/results.pdf
==================================================================
--- docs/results.pdf
+++ docs/results.pdf
cannot compute difference between binary files

Index: utils/plot-code.scm
==================================================================
--- utils/plot-code.scm
+++ utils/plot-code.scm
@@ -1,12 +1,17 @@
 #!/mfs/pkgs/chicken/4.8.0.5/bin/csi -nbq
 
 (use regex srfi-69 srfi-13)
 
-(define targs (string-split (cadddr (argv)) ","))
+(define targs #f) 
 (define files (cddddr (argv)))
 
+(let ((targdat (cadddr (argv))))
+  (if (equal? targdat "-")
+      (set! targs files)
+      (set! targs (string-split targdat ","))))
+
 (define filedat-defns (make-hash-table))
 (define filedat-usages (make-hash-table))
 
 (define defn-rx (regexp "^\\s*\\(define\\s+\\(([^\\s\\)]+).*"))
 (define all-regexs (make-hash-table))