emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
blob b045344f055f7ba7dfe44c702bddb1950535fd7c 28537 bytes (raw)
name: lisp/org-plot.el 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
 
;;; org-plot.el --- Support for Plotting from Org -*- lexical-binding: t; -*-

;; Copyright (C) 2008-2024 Free Software Foundation, Inc.
;;
;; Author: Eric Schulte <schulte dot eric at gmail dot com>
;; Maintainer: TEC <orgmode@tec.tecosaur.net>
;; Keywords: tables, plotting
;; URL: https://orgmode.org
;;
;; This file is part of GNU Emacs.
;;
;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; Borrows ideas and a couple of lines of code from org-exp.el.

;; Thanks to the Org mailing list for testing and implementation and
;; feature suggestions

;;; Code:

(require 'org-macs)
(org-assert-version)

(require 'cl-lib)
(require 'org)
(require 'org-table)

(declare-function gnuplot-delchar-or-maybe-eof "ext:gnuplot" (arg))
(declare-function gnuplot-mode "ext:gnuplot" ())
(declare-function gnuplot-send-buffer-to-gnuplot "ext:gnuplot" ())

(defvar org-plot/gnuplot-default-options
  '((:plot-type . 2d)
    (:with . lines)
    (:ind . 0))
  "Default options to gnuplot used by `org-plot/gnuplot'.")

(defvar org-plot-timestamp-fmt "%Y-%m-%d-%H:%M:%S"
  "Default time format to be passed to Gnuplot.
Can be changed via timefmt plot option.")

(defun org-plot/add-options-to-plist (p options)
  "Parse an OPTIONS line and set values in the property list P.
Returns the resulting property list."
  (when options
    (let ((op '(("type"      . :plot-type)
		("script"    . :script)
		("line"      . :line)
		("set"       . :set)
		("title"     . :title)
		("ind"       . :ind)
		("deps"      . :deps)
		("with"      . :with)
		("file"      . :file)
		("labels"    . :labels)
		("map"       . :map)
		("timeind"   . :timeind)
		("timefmt"   . :timefmt)
		("min"       . :ymin)
		("ymin"      . :ymin)
		("max"       . :ymax)
		("ymax"      . :ymax)
		("xmin"      . :xmin)
		("xmax"      . :xmax)
		("ticks"     . :ticks)
		("trans"     . :transpose)
		("transpose" . :transpose)))
	  (multiples '("set" "line"))
	  (regexp ":\\([\"][^\"]+?[\"]\\|[(][^)]+?[)]\\|[^ \t\n\r;,.]*\\)")
	  (start 0))
      (dolist (o op)
	(if (member (car o) multiples) ;; keys with multiple values
	    (while (string-match
		    (concat (regexp-quote (car o)) regexp)
		    options start)
	      (setq start (match-end 0))
	      (setq p (plist-put p (cdr o)
				 (cons (car (read-from-string
					     (match-string 1 options)))
				       (plist-get p (cdr o)))))
	      p)
	  (if (string-match (concat (regexp-quote (car o)) regexp)
			    options)
	      (setq p (plist-put p (cdr o)
				 (car (read-from-string
				       (match-string 1 options))))))))))
  p)

(defun org-plot/goto-nearest-table ()
  "Move the point forward to the beginning of nearest table.
Return value is the point at the beginning of the table."
  (interactive) (move-beginning-of-line 1)
  (while (not (or (org-at-table-p) (< 0 (forward-line 1)))))
  (goto-char (org-table-begin)))

(defun org-plot/collect-options (&optional params)
  "Collect options from an org-plot `#+Plot:' line.
Accepts an optional property list PARAMS, to which the options
will be added.  Returns the resulting property list."
  (interactive)
  (let ((line (thing-at-point 'line)))
    (if (string-match "#\\+PLOT: +\\(.*\\)$" line)
	(org-plot/add-options-to-plist params (match-string 1 line))
      params)))

(defun org-plot-quote-timestamp-field (s)
  "Convert field S from timestamp to Unix time and export to gnuplot."
  (format-time-string org-plot-timestamp-fmt (org-time-string-to-time s)))

(defun org-plot-quote-tsv-field (s)
  "Quote field S for export to gnuplot."
  (if (string-match org-table-number-regexp s) s
    (if (string-match org-ts-regexp3 s)
	(org-plot-quote-timestamp-field s)
      (concat "\"" (mapconcat 'identity (split-string s "\"") "\"\"") "\""))))

(defun org-plot/gnuplot-to-data (table data-file params)
  "Export TABLE to DATA-FILE in a format readable by gnuplot.
Pass PARAMS through to `orgtbl-to-generic' when exporting TABLE."
  (with-temp-file
      data-file
    (let ((org-plot-timestamp-fmt
           (or
	    (plist-get params :timefmt)
            org-plot-timestamp-fmt
	    "%Y-%m-%d-%H:%M:%S")))
      (insert (orgtbl-to-generic
	       table
	       (org-combine-plists
	        '(:sep "\t" :fmt org-plot-quote-tsv-field)
	        params)))))
  nil)

(defun org-plot/gnuplot-to-grid-data (table data-file params)
  "Export the data in TABLE to DATA-FILE for gnuplot.
This means in a format appropriate for grid plotting by gnuplot.
PARAMS specifies which columns of TABLE should be plotted as independent
and dependent variables."
  (interactive)
  (let* ((ind (- (plist-get params :ind) 1))
	 (deps (if (plist-member params :deps)
		   (mapcar (lambda (val) (- val 1)) (plist-get params :deps))
		 (let (collector)
		   (dotimes (col (length (nth 0 table)))
		     (setf collector (cons col collector)))
		   collector)))
	 (counter 0)
	 row-vals)
    (when (>= ind 0) ;; collect values of ind col
      (setf row-vals (mapcar (lambda (row) (setf counter (+ 1 counter))
			       (cons counter (nth ind row)))
			     table)))
    (when (or deps (>= ind 0)) ;; remove non-plotting columns
      (setf deps (delq ind deps))
      (setf table (mapcar (lambda (row)
			    (dotimes (col (length row))
			      (unless (memq col deps)
				(setf (nth col row) nil)))
			    (delq nil row))
			  table)))
    ;; write table to gnuplot grid datafile format
    (with-temp-file data-file
      (let ((num-rows (length table)) (num-cols (length (nth 0 table)))
	    (gnuplot-row (lambda (col row value)
			   (setf col (+ 1 col)) (setf row (+ 1 row))
			   (format "%f  %f  %f\n%f  %f  %f\n"
				   col (- row 0.5) value ;; lower edge
				   col (+ row 0.5) value))) ;; upper edge
	    front-edge back-edge)
	(dotimes (col num-cols)
	  (dotimes (row num-rows)
	    (setf back-edge
		  (concat back-edge
			  (funcall gnuplot-row (- col 1) row
				   (string-to-number (nth col (nth row table))))))
	    (setf front-edge
		  (concat front-edge
			  (funcall gnuplot-row col row
				   (string-to-number (nth col (nth row table)))))))
	  ;; only insert once per row
	  (insert back-edge) (insert "\n") ;; back edge
	  (insert front-edge) (insert "\n") ;; front edge
	  (setf back-edge "") (setf front-edge ""))))
    row-vals))

(defun org--plot/values-stats (nums &optional hard-min hard-max)
  "Rudimentary statistics about NUMS, useful for guessing axis ticks.
If HARD-MIN or HARD-MAX are set, they will be used instead of the min/max
of the NUMS."
  (let* ((minimum (or hard-min (apply #'min nums)))
	 (maximum (or hard-max (apply #'max nums)))
	 (range (- maximum minimum))
	 (rangeOrder (if (= range 0) 0
		       (ceiling (- 1 (log range 10)))))
	 (range-factor (expt 10 rangeOrder))
	 (nice-min (if (= range 0) (car nums)
		     (/ (float (floor (* minimum range-factor))) range-factor)))
	 (nice-max (if (= range 0) (car nums)
		     (/ (float (ceiling (* maximum range-factor))) range-factor))))
    `(:min ,minimum :max ,maximum :range ,range
           :range-factor ,range-factor
           :nice-min ,nice-min :nice-max ,nice-max :nice-range ,(- nice-max nice-min))))

(defun org--plot/sensible-tick-num (table &optional hard-min hard-max)
  "From a the values in a TABLE of data, guess an appropriate number of ticks.
If HARD-MIN and HARD-MAX can be used to fix the ends of the axis."
  (let* ((row-data
	  (mapcar (lambda (row) (org--plot/values-stats
			         (mapcar #'string-to-number (cdr row))
			         hard-min
			         hard-max)) table))
	 (row-normalised-ranges (mapcar (lambda (r-data)
					  (let ((val (round (*
							     (plist-get r-data :range-factor)
							     (plist-get r-data :nice-range)))))
					    (if (= (% val 10) 0) (/ val 10) val)))
					row-data))
	 (range-prime-decomposition (mapcar #'org--plot/prime-factors row-normalised-ranges))
	 (weighted-factors (sort (apply #'org--plot/merge-alists #'+ 0
					(mapcar (lambda (factors) (org--plot/item-frequencies factors t))
						range-prime-decomposition))
				 (lambda (a b) (> (cdr a) (cdr b))))))
    (apply #'* (org--plot/nice-frequency-pick weighted-factors))))

(defun org--plot/nice-frequency-pick (frequencies)
  "From a list of FREQUENCIES, try to sensibly pick a sample of the most frequent."
  ;; TODO this mosly works decently, but could do with some tweaking to work more consistently.
  (cl-case (length frequencies)
    (1 (list (car (nth 0 frequencies))))
    (2 (if (<= 3 (/ (cdr (nth 0 frequencies))
		    (cdr (nth 1 frequencies))))
	   (make-list 2
		      (car (nth 0 frequencies)))
	 (list (car (nth 0 frequencies))
	       (car (nth 1 frequencies)))))
    (t
     (let* ((total-count (apply #'+ (mapcar #'cdr frequencies)))
	    (n-freq (mapcar (lambda (freq) `(,(car freq) . ,(/ (float (cdr freq)) total-count))) frequencies))
	    (f-pick (list (car (car n-freq))))
	    (1-2-ratio (/ (cdr (nth 0 n-freq))
			  (cdr (nth 1 n-freq))))
	    (2-3-ratio (/ (cdr (nth 1 n-freq))
			  (cdr (nth 2 n-freq))))
	    (1-3-ratio (* 1-2-ratio 2-3-ratio))
	    (1-val (car (nth 0 n-freq)))
	    (2-val (car (nth 1 n-freq)))
	    (3-val (car (nth 2 n-freq))))
       (when (> 1-2-ratio 4) (push 1-val f-pick))
       (when (and (< 1-2-ratio 2-val)
		  (< (* (apply #'* f-pick) 2-val) 30))
	 (push 2-val f-pick))
       (when (and (< 1-3-ratio 3-val)
		  (< (* (apply #'* f-pick) 3-val) 30))
	 (push 3-val f-pick))
       f-pick))))

(defun org--plot/merge-alists (function default alist1 alist2 &rest alists)
  "Using FUNCTION, combine the elements of ALIST1, ALIST2 and any other ALISTS.
When an element is only present in one alist, DEFAULT is used as the second
argument for the FUNCTION."
  (when (> (length alists) 0)
    (setq alist2 (apply #'org--plot/merge-alists function default alist2 alists)))
  (cl-flet ((keys (alist) (mapcar #'car alist))
	    (lookup (key alist) (or (cdr (assoc key alist)) default)))
    (cl-loop with keys = (cl-union (keys alist1) (keys alist2) :test 'equal)
	     for k in keys collect
	     (cons k (funcall function (lookup k alist1) (lookup k alist2))))))

(defun org--plot/item-frequencies (values &optional normalize)
  "Return an alist indicating the frequency of values in VALUES list.
When NORMALIZE is non-nil, the count is divided by the number of values."
  (let ((normaliser (if normalize (float (length values)) 1)))
    (cl-loop for (n . m) in (seq-group-by #'identity values)
	     collect (cons n (/ (length m) normaliser)))))

(defun org--plot/prime-factors (value)
  "Return the prime decomposition of VALUE, e.g. for 12, (3 2 2)."
  (let ((factors '(1)) (i 1))
    (while (/= 1 value)
      (setq i (1+ i))
      (when (eq 0 (% value i))
	(push i factors)
	(setq value (/ value i))
	(setq i (1- i))
	))
    (cl-subseq factors 0 -1)))

(defgroup org-plot nil
  "Options for plotting in Org mode."
  :tag "Org Plot"
  :group 'org)

(defcustom org-plot/gnuplot-script-preamble ""
  "String of function to be inserted before the gnuplot plot command is run.

Note that this is in addition to, not instead of other content generated
in `org-plot/gnuplot-script'.  If a function, it is called with the
parameters used by the current plot type (see
`org-plot/preset-plot-types'), and must return a string to be used."
  :group 'org-plot
  :type '(choice string function))

(defcustom org-plot/preset-plot-types
  '((2d :plot-cmd "plot"
	:check-ind-type t
	:plot-func
	(lambda (_table data-file num-cols params plot-str)
	  (let* ((type (plist-get params :plot-type))
		 (with (if (eq type 'grid) 'pm3d (plist-get params :with)))
		 (ind (plist-get params :ind))
		 (deps (if (plist-member params :deps) (plist-get params :deps)))
		 (text-ind (or (plist-get params :textind)
                               (eq (plist-get params :with) 'histograms)))
		 (col-labels (plist-get params :labels))
		 res)
	    (dotimes (col num-cols res)
	      (unless (and (eq type '2d)
			   (or (and ind (equal (1+ col) ind))
			       (and deps (not (member (1+ col) deps)))))
		(setf res
		      (cons
		       (format plot-str data-file
			       (or (and ind (> ind 0)
					(not text-ind)
					(format "%d:" ind)) "")
			       (1+ col)
			       (if text-ind (format ":xticlabel(%d)" ind) "")
			       with
			       (or (nth col col-labels)
				   (format "%d" (1+ col))))
		       res)))))))
    (3d :plot-cmd "splot"
	:plot-pre (lambda (_table _data-file _num-cols params _plot-str)
		    (if (plist-get params :map) "set map"))
	:plot-func
	(lambda (_table data-file _num-cols params _plot-str)
	  (let* ((type (plist-get params :plot-type))
		 (with (if (eq type 'grid) 'pm3d (plist-get params :with))))
	    (list (format "'%s' matrix with %s title ''"
			  data-file with)))))
    (grid :plot-cmd "splot"
	  :plot-pre (lambda (_table _data-file _num-cols params _plot-str)
		      (if (plist-get params :map) "set pm3d map" "set map"))
	  :data-dump (lambda (table data-file _num-cols params)
		       (let ((y-labels (org-plot/gnuplot-to-grid-data
					table data-file params)))
			 (when y-labels (plist-put params :ylabels y-labels))))
	  :plot-func
	  (lambda (table data-file _num-cols params _plot-str)
	    (let* ((type (plist-get params :plot-type))
		   (with (if (eq type 'grid) 'pm3d (plist-get params :with))))
	      (list (format "'%s' with %s title ''"
			    data-file with)))))
    (radar :plot-func
	   (lambda (table _data-file _num-cols params plot-str)
	     (list (org--plot/radar table params)))))
  "List of plists describing the available plot types.
The car is the type name, and the property :plot-func must be
set.  The value of :plot-func is a lambda which yields plot-lines
\(a list of strings) as the cdr.

All lambda functions have the parameters of
`org-plot/gnuplot-script' and PLOT-STR passed to them.  i.e. they
are called with the following signature: (TABLE DATA-FILE
NUM-COLS PARAMS PLOT-STR)

Potentially useful parameters in PARAMS include:
 :set :line :map :title :file :ind :timeind :timefmt :textind
 :deps :labels :xlabels :ylabels :xmin :xmax :ymin :ymax :ticks

In addition to :plot-func, the following optional properties may
be set.

- :plot-cmd - A gnuplot command appended to each plot-line.
  Accepts string or nil.  Default value: nil.

- :check-ind-type - Whether the types of ind values should be checked.
  Accepts boolean.

- :plot-str - the formula string passed to :plot-func as PLOT-STR
  Accepts string.  Default value: \"'%s' using %s%d%s with %s title '%s'\"

- :data-dump - Function to dump the table to a datafile for ease of
  use.

  Accepts function with arguments:
  (table data-file num-cols params)

- :plot-pre - Gnuplot code to be inserted early into the script, just
  after term and output have been set.

   Accepts string, nil, or lambda function which returns string
   or nil.  Defaults to nil."
  :group 'org-plot
  :type 'alist)

(defvar org--plot/radar-template
  "### spider plot/chart with gnuplot
# also known as: radar chart, web chart, star chart, cobweb chart,
#                radar plot,  web plot,  star plot,  cobweb plot,  etc. ...
set datafile separator ' '
set size square
unset tics
set angles degree
set key bmargin center horizontal
unset border

# Load data and setup
load \"%s\"

# General settings
DataColCount = words($Data[1])-1
AxesCount = |$Data|-HeaderLines-1
AngleOffset = 90
Max = 1
d=0.1*Max
Direction = -1   # counterclockwise=1, clockwise = -1

# Tic settings
TicCount = %s
TicOffset = 0.1
TicValue(axis,i) = real(i)*(word($Settings[axis],3)-word($Settings[axis],2)) \\
	  / word($Settings[axis],4)+word($Settings[axis],2)
TicLabelPosX(axis,i) = PosX(axis,i/TicCount) + PosY(axis, TicOffset)
TicLabelPosY(axis,i) = PosY(axis,i/TicCount) - PosX(axis, TicOffset)
TicLen = 0.03
TicdX(axis,i) = 0.5*TicLen*cos(alpha(axis)-90)
TicdY(axis,i) = 0.5*TicLen*sin(alpha(axis)-90)

# Label
LabOffset = 0.10
LabX(axis) = PosX(axis+1,Max+2*d) + PosY(axis, LabOffset)
LabY(axis) = PosY($0+1,Max+2*d)

# Functions
alpha(axis) = (axis-1)*Direction*360.0/AxesCount+AngleOffset
PosX(axis,R) = R*cos(alpha(axis))
PosY(axis,R) = R*sin(alpha(axis))
Scale(axis,value) = real(value-word($Settings[axis],2))/(word($Settings[axis],3)-word($Settings[axis],2))

# Spider settings
set style arrow 1 dt 1 lw 1.0 @fgal head filled size 0.06,25     # style for axes
set style arrow 2 dt 2 lw 0.5 @fgal nohead   # style for weblines
set style arrow 3 dt 1 lw 1 @fgal nohead     # style for axis tics
set samples AxesCount
set isosamples TicCount
set urange[1:AxesCount]
set vrange[1:TicCount]
set style fill transparent solid 0.2

set xrange[-Max-4*d:Max+4*d]
set yrange[-Max-4*d:Max+4*d]
plot \\
    '+' u (0):(0):(PosX($0,Max+d)):(PosY($0,Max+d)) w vec as 1 not, \\
    $Data u (LabX($0)): \\
	(LabY($0)):1 every ::HeaderLines w labels center enhanced @fgt not, \\
    for [i=1:DataColCount] $Data u (PosX($0+1,Scale($0+1,column(i+1)))): \\
	(PosY($0+1,Scale($0+1,column(i+1)))) every ::HeaderLines w filledcurves lt i title word($Data[1],i+1), \\
%s
#    '++' u (PosX($1,$2/TicCount)-TicdX($1,$2/TicCount)): \\
#        (PosY($1,$2/TicCount)-TicdY($1,$2/TicCount)): \\
#        (2*TicdX($1,$2/TicCount)):(2*TicdY($1,$2/TicCount)) \\
#        w vec as 3 not, \\
### end of code
")

(defvar org--plot/radar-ticks
  "    '++' u (PosX($1,$2/TicCount)):(PosY($1,$2/TicCount)): \\
	(PosX($1+1,$2/TicCount)-PosX($1,$2/TicCount)):  \\
	(PosY($1+1,$2/TicCount)-PosY($1,$2/TicCount)) w vec as 2 not, \\
    '++' u (TicLabelPosX(%s,$2)):(TicLabelPosY(%s,$2)): \\
	(sprintf('%%g',TicValue(%s,$2))) w labels font ',8' @fgat not")

(defvar org--plot/radar-setup-template
  "# Data
$Data <<HEREHAVESOMEDATA
%s
HEREHAVESOMEDATA
HeaderLines = 1

# Settings for scale and offset adjustments
# axis min max tics axisLabelXoff axisLabelYoff
$Settings <<EOD
%s
EOD
")

(defun org--plot/radar (table params)
  "Create gnuplot code for a radar plot of TABLE with PARAMS."
  (let* ((data
	  (concat "\"" (mapconcat #'identity (plist-get params :labels) "\" \"") "\""
		  "\n"
		  (mapconcat (lambda (row)
			       (format
				"\"%s\" %s"
				(car row)
				(mapconcat #'identity (cdr row) " ")))
			     (append table (list (car table)))
			     "\n")))
	 (ticks (or (plist-get params :ticks)
		    (org--plot/sensible-tick-num table
						 (plist-get params :ymin)
						 (plist-get params :ymax))))
	 (settings
	  (mapconcat (lambda (row)
		       (let ((data (org--plot/values-stats
				    (mapcar #'string-to-number (cdr row)))))
			 (format
			  "\"%s\" %s %s %s"
			  (car row)
			  (or (plist-get params :ymin)
			      (plist-get data :nice-min))
			  (or (plist-get params :ymax)
			      (plist-get data :nice-max))
			  (if (eq ticks 0) 2 ticks)
			  )))
		     (append table (list (car table)))
		     "\n"))
	 (setup-file (make-temp-file "org-plot-setup")))
    (let ((coding-system-for-write 'utf-8))
      (write-region (format org--plot/radar-setup-template data settings) nil setup-file nil :silent))
    (format org--plot/radar-template
	    setup-file
	    (if (eq ticks 0) 2 ticks)
	    (if (eq ticks 0) ""
	      (apply #'format org--plot/radar-ticks
		     (make-list 3 (if (and (plist-get params :ymin)
					   (plist-get params :ymax))
				      ;; FIXME multi-drawing of tick labels with "1"
				      "1" "$1")))))))

(defcustom org-plot/gnuplot-term-extra ""
  "String or function which provides the extra term options.
E.g. a value of \"size 1050,650\" would cause
\"set term ... size 1050,650\" to be used.
If a function, it is called with the parameters used by the current plot
type, see `org-plot/preset-plot-types'."
  :group 'org-plot
  :type '(choice string function))

(defun org-plot/gnuplot-script (table data-file num-cols params &optional preface)
  "Write a gnuplot script for TABLE to DATA-FILE respecting options in PARAMS.
NUM-COLS controls the number of columns plotted in a 2-d plot.
Optional argument PREFACE returns only option parameters in a
manner suitable for prepending to a user-specified script."
  (let* ((type-name (plist-get params :plot-type))
	 (type (cdr (assoc type-name org-plot/preset-plot-types))))
    (unless type
      (user-error "Org-plot type `%s' is undefined" type-name))
    (let* ((sets (plist-get params :set))
	   (lines (plist-get params :line))
	   (title (plist-get params :title))
	   (file (plist-get params :file))
	   (time-ind (plist-get params :timeind))
	   (timefmt (plist-get params :timefmt))
	   (x-labels (plist-get params :xlabels))
	   (y-labels (plist-get params :ylabels))
	   (plot-str (or (plist-get type :plot-str)
			 "'%s' using %s%d%s with %s title '%s'"))
	   (plot-cmd (plist-get type :plot-cmd))
	   (plot-pre (plist-get type :plot-pre))
	   (script "reset")
	   ;; ats = add-to-script
	   (ats (lambda (line) (when line (setf script (concat script "\n" line)))))
	   plot-lines)


      ;; handle output file, background, and size
      (funcall ats (format "set term %s %s"
			   (if file (file-name-extension file) "GNUTERM")
			   (if (stringp org-plot/gnuplot-term-extra)
			       org-plot/gnuplot-term-extra
			     (funcall org-plot/gnuplot-term-extra type))))
      (when file ; output file
	(funcall ats (format "set output '%s'" (expand-file-name file))))

      (when plot-pre
	(funcall ats (funcall plot-pre table data-file num-cols params plot-str)))

      (funcall ats
	       (if (stringp org-plot/gnuplot-script-preamble)
		   org-plot/gnuplot-script-preamble
		 (funcall org-plot/gnuplot-script-preamble type)))

      (when title (funcall ats (format "set title '%s'" title))) ; title
      (mapc ats lines)					       ; line
      (dolist (el sets) (funcall ats (format "set %s" el)))      ; set
      ;; Unless specified otherwise, values are TAB separated.
      (unless (string-match-p "^set datafile separator" script)
	(funcall ats "set datafile separator \"\\t\""))
      (when x-labels			; x labels (xtics)
	(funcall ats
		 (format "set xtics (%s)"
			 (mapconcat (lambda (pair)
				      (format "\"%s\" %d" (cdr pair) (car pair)))
				    x-labels ", "))))
      (when y-labels			; y labels (ytics)
	(funcall ats
		 (format "set ytics (%s)"
			 (mapconcat (lambda (pair)
				      (format "\"%s\" %d" (cdr pair) (car pair)))
				    y-labels ", "))))
      (when time-ind			; timestamp index
	(funcall ats "set xdata time")
	(funcall ats (concat "set timefmt \""
			     (or timefmt	; timefmt passed to gnuplot
				 "%Y-%m-%d-%H:%M:%S") "\"")))
      (unless preface
	(let ((type-func (plist-get type :plot-func)))
	  (when type-func
	    (setq plot-lines
		  (funcall type-func table data-file num-cols params plot-str))))
	(funcall ats
		 (concat plot-cmd
			 (when plot-cmd " ")
			 (mapconcat #'identity
				    (reverse plot-lines)
				    ",\\\n    "))))
      script)))

(defun org-plot/redisplay-img-in-buffer (img-file)
  "Find any overlays for IMG-FILE in the current Org buffer, and refresh them."
  (dolist (img-overlay org-inline-image-overlays)
    (when (string= img-file (plist-get (cdr (overlay-get img-overlay 'display)) :file))
      (when (and (file-exists-p img-file)
                 (fboundp 'image-flush))
        (image-flush (overlay-get img-overlay 'display))))))

;;-----------------------------------------------------------------------------
;; facade functions
;;;###autoload
(defun org-plot/gnuplot (&optional params)
  "Plot table using gnuplot.  Gnuplot options can be specified with PARAMS.
If not given options will be taken from the +PLOT
line directly before or after the table."
  (interactive)
  (org-require-package 'gnuplot)
  (save-window-excursion
    ;; `gnuplot-send-buffer-to-gnuplot' will display *gnuplot* buffer
    ;; if `gnuplot-display-process' is non-nil.  Make it visible while
    ;; gnuplot is processing the data, preferably as a split, and
    ;; restore old window configuration after gnuplot finishes.
    (ignore-errors (delete-other-windows))
    (when (get-buffer "*gnuplot*") ; reset *gnuplot* if it already running
      (with-current-buffer "*gnuplot*"
	(goto-char (point-max))))
    (save-excursion
      (org-plot/goto-nearest-table)
      ;; Set default options.
      (dolist (pair org-plot/gnuplot-default-options)
        (unless (plist-member params (car pair))
          (setf params (plist-put params (car pair) (cdr pair)))))
      ;; Collect options.
      (while (and (equal 0 (forward-line -1))
                  (looking-at "[[:space:]]*#\\+"))
        (setf params (org-plot/collect-options params))))
    ;; collect table and table information
    (let* ((table (let ((tbl (save-excursion
                               (org-plot/goto-nearest-table)
                               (org-table-to-lisp))))
		    (when (pcase (plist-get params :transpose)
			    (`y   t)
			    (`yes t)
			    (`t   t))
		      (if (not (memq 'hline tbl))
			  (setq tbl (apply #'cl-mapcar #'list tbl))
			;; When present, remove hlines as they can't (currentily) be easily transposed.
			(setq tbl (apply #'cl-mapcar #'list
					 (remove 'hline tbl)))
			(push 'hline (cdr tbl))))
		    tbl))
	   (num-cols (length (if (eq (nth 0 table) 'hline) (nth 1 table)
			       (nth 0 table))))
	   (type (cdr (assoc (plist-get params :plot-type)
			     org-plot/preset-plot-types)))
           gnuplot-script data-file)

      (unless type
	(user-error "Org-plot type `%s' is undefined" (plist-get params :plot-type)))

      (when (eq (cadr table) 'hline)
	(setf params
	      (plist-put params :labels (car table))) ; headers to labels
	(setf table (delq 'hline (cdr table)))) ; clean non-data from table
      ;; Collect options.
      (save-excursion (while (and (equal 0 (forward-line -1))
				  (looking-at "[[:space:]]*#\\+"))
			(setf params (org-plot/collect-options params))))
      ;; Ensure that the user can override any plot parameter, and
      ;; that the parameters set by the plot type in
      ;; `org-plot/preset-plot-types' is respected.
      (setq params (org-combine-plists type params))
      ;; Dump table to datafile
      (let ((dump-func (plist-get type :data-dump)))
        ;; Use a stable temporary file to ensure that 'replot' upon
        ;; resizing a GUI gnuplot terminal window works.
        (setq data-file (org-babel-temp-stable-file
                         (list (or dump-func 'org-plot/gnuplot-to-data)
                               table num-cols params)
                         "org-plot"))
        (if dump-func
	    (funcall dump-func table data-file num-cols params)
	  (org-plot/gnuplot-to-data table data-file params)))
      ;; Check type of ind column (timestamp? text?)
      (when (plist-get params :check-ind-type)
	(let* ((ind (1- (plist-get params :ind)))
	       (ind-column (mapcar (lambda (row) (nth ind row)) table)))
	  (cond ((< ind 0) nil) ; ind is implicit
		((cl-every (lambda (el)
			     (string-match org-ts-regexp3 el))
			   ind-column)
		 (plist-put params :timeind t)) ; ind holds timestamps
		((or (string= (plist-get params :with) "hist")
		     (cl-notevery (lambda (el)
				    (string-match org-table-number-regexp el))
				  ind-column))
		 (plist-put params :textind t))))) ; ind holds text
      ;; Write script.
      (setq gnuplot-script
            (org-plot/gnuplot-script
             table data-file num-cols params (plist-get params :script)))
      (with-temp-buffer
	(if (plist-get params :script)	; user script
	    (progn (insert gnuplot-script "\n")
		   (insert-file-contents (plist-get params :script))
		   (goto-char (point-min))
		   (while (re-search-forward "\\$datafile" nil t)
		     (replace-match data-file nil nil)))
	  (insert gnuplot-script))
	;; Graph table.
	(gnuplot-mode)
        (condition-case nil
            (gnuplot-send-buffer-to-gnuplot)
          (buffer-read-only nil)))
      ;; Cleanup.
      (bury-buffer (get-buffer "*gnuplot*"))
      ;; Refresh any displayed images
      (when (plist-get params :file)
        (org-plot/redisplay-img-in-buffer (expand-file-name (plist-get params :file)))))))

(provide 'org-plot)

;; Local variables:
;; generated-autoload-file: "org-loaddefs.el"
;; End:

;;; org-plot.el ends here

debug log:

solving b045344f0 ...
found b045344f0 in https://git.savannah.gnu.org/cgit/emacs/org-mode.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).