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* guile: some update for the output format

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djcb
2013-07-23 22:22:57 +03:00
parent b7324d5af6
commit b7219aaf82
3 changed files with 29 additions and 23 deletions
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21
guile/mu/plot.scm
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@ -45,24 +45,29 @@ not found."
(if (access? progpath X_OK) ;; is
progpath
#f))))
2
(define* (mu:plot-histogram data title x-label y-label #:optional (text-only #f) (extra-gnuplot-opts '()))
"Plot DATA with TITLE, X-LABEL and X-LABEL. If TEXT-ONLY is true,
display using raw text, otherwise, use a graphical window. DATA is a
list of cons-pairs (X . Y)."
(define* (mu:plot-histogram data title x-label y-label output
#:optional (extra-gnuplot-opts '()))
"Plot DATA with TITLE, X-LABEL and X-LABEL using the gnuplot
program. DATA is a list of cons-pairs (X . Y). OUTPUT is a string
that determines the type of output that gnuplot produces, depending on
the system. Which options are available depends on the particulars for
the gnuplot installation, but typical examples would be \"dumb\" for
text-only display, \"wxterm\" to write to a graphical window, or
\"png\" to write a PNG-image to stdout. EXTRA-GNUPLOT-OPTS are any
additional options for gnuplot."
(if (not (find-program-in-path "gnuplot"))
(error "cannot find 'gnuplot' in path"))
(let ((datafile (export-pairs data))
(gnuplot (open-pipe "gnuplot -p" OPEN_WRITE)))
(display (string-append
"reset\n"
"set term " (if text-only "dumb" "wxt") "\n"
"set term " (or output "dumb") "\n"
"set title \"" title "\"\n"
"set xlabel \"" x-label "\"\n"
"set ylabel \"" y-label "\"\n"
"set boxwidth 0.9\n"
(string-join extra-gnuplot-opts "\n")
(string-join extra-gnuplot-opts "\n")
"plot \"" datafile "\" using 2:xticlabels(1) with boxes fs solid\n")
gnuplot)
(close-pipe gnuplot)))