/usr/lib/pd/extra/cyclone/change~-help.pd is in pd-cyclone 0.2~beta1-2.
This file is owned by root:root, with mode 0o644.
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#X text 1 20 LICENSE SIBSD;
#X text 1 100 LIBRARY cyclone;
#X text 1 60 INLET_0 signal;
#X text 1 80 OUTLET_0 signal;
#X text 1 0 KEYWORDS signal change direction detect;
#X text 1 40 DESCRIPTION detect signal change and direction;
#X text 0 122 VERSION 0.2-beta1;
#X text 0 140 AUTHOR Krzysztof Czaja;
#X text 1 158 RELEASE_DATE 2002;
#X text 2 177 WEBSITE http://suita.chopin.edu.pl/~czaja/miXed/externs/cyclone.html
;
#X text 2 209 HELP_PATCH_AUTHORS Christoph Kummerer. Revised by Jonathan
Wilkes for Pd-extended 0.42 to conform to the PDDP template. Alex Cleveland
updated this patch for Pd-l2ork version 2013.05.28. Fred Jan Kraan
adapted the patch to pd-extended 2015-02-02;
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#X text 6 1 Related Objects;
#X obj 13 33 change;
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#X text 12 23 Detect signal change and direction;
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#X text 413 270 signal isn't the same;
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#X text 386 291 signal is the same;
#X text 100 45 245 increasing;
#X text 193 45 245 decreasing;
#X text 288 45 245 the same;
#X obj 370 215 expr~ $v1==0;
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#X text 110 388 signal;
#X text 180 388 - signal to detect change and direction;
#X text 110 491 (none);
#X text 110 444 signal;
#X text 179 444 - -1 then signal is decreasing \, 1 then signal is
increasing \, 0 then signal is the same;
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#X text 296 317 detect when signal;
#X text 296 329 is increasing;
#X text 183 344 detect when signal;
#X text 185 356 is decreasing;
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#X obj 281 247 cyclone/edge~;
#X obj 370 247 cyclone/edge~;
#X text 110 403 float;
#X text 180 402 - sets the signal compare value;
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