/usr/lib/pd/extra/hcs/autoscale-help.pd is in pd-hcs 0.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | #N canvas 48 99 462 532 10;
#X floatatom 26 88 5 0 0 0 - - -;
#X floatatom 26 152 0 0 0 0 - - -;
#X obj 68 270 autoscale;
#X obj 2 2 cnv 15 450 20 empty empty autoscale 2 11 1 18 -233017
-66577 0;
#X msg 418 3 pddp;
#X text 18 35 [autoscale] scales a stream of numbers based on an output
range set as arguments \, and an input range which is set dynamically.
;
#X text 13 193 If you use [autoscale] with no arguments \, then the
output range defaults to 0-127.;
#X floatatom 68 249 5 0 0 0 - - -;
#X obj 71 293 hsl 128 15 0 127 0 0 empty empty empty -2 -6 0 8 -262144
-1 -1 0 1;
#X text 17 453 (C) Copyright 2004 Hans-Christoph Steiner <hans@at.or.at>
;
#X text 234 467 released under the GNU GPL;
#X floatatom 150 152 0 0 0 0 - - -;
#X floatatom 297 152 0 0 0 0 - - -;
#X obj 213 83 hsl 128 15 0 127 0 0 empty empty empty -2 -6 0 8 -262144
-1 -1 0 1;
#X text 17 486 $Revision: 1.5 $$Date: 2006-03-17 04:50:03 $;
#X text 18 499 $Author: eighthave $;
#X text 25 336 The [reset( message resets the stored max and min to
zero.;
#X floatatom 46 360 5 0 0 0 - - -;
#X obj 71 413 hsl 128 15 0 127 0 0 empty empty empty -2 -6 0 8 -262144
-1 -1 0 1;
#X msg 96 358 reset;
#X obj 26 122 autoscale 0 1;
#X obj 150 122 autoscale -0.01 0.01;
#X obj 297 122 autoscale -4095 4095;
#X obj 68 390 autoscale;
#X connect 0 0 20 0;
#X connect 2 0 8 0;
#X connect 7 0 2 0;
#X connect 13 0 21 0;
#X connect 13 0 22 0;
#X connect 17 0 23 0;
#X connect 19 0 23 0;
#X connect 20 0 1 0;
#X connect 21 0 11 0;
#X connect 22 0 12 0;
#X connect 23 0 18 0;
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