/usr/lib/puredata/extra/pique/pique-help.pd is in puredata-extra 0.48.1-3.
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 | #N canvas 143 0 729 407 12;
#X obj 47 11 pique;
#X text 105 12 -- find peaks in an FFT spectrum;
#X obj 214 174 rfft~;
#X obj 131 129 osc~ 2000;
#X graph graph2 0 -64 63 64 519 179 719 39;
#X array fft-real 64 float;
#X pop;
#X graph graph3 0 -64 63 64 519 327 719 187;
#X array fft-imag 64 float;
#X pop;
#X obj 214 215 tabwrite~ fft-real;
#X obj 245 240 tabwrite~ fft-imag;
#X obj 315 158 metro 1000;
#X obj 315 116 loadbang;
#X msg 315 138 1;
#X obj 91 349 pique;
#X msg 91 322 64 fft-real fft-imag 10;
#X obj 91 376 print;
#X obj 205 132 osc~ 5000;
#X text 25 37 pique takes unwindowed FFT analyses as input (they should be stored in arrays) and outputs a list of peaks \, giving their peak number \, frequency \, amplitude \, and phase (as a cosine/sine pair.);
#X text 13 289 message arguments: number of FFT points \, fft real part \, fft imaginary part \, maximum number of peaks to report.;
#X text 578 387 updated for Pd 0.31.;
#X connect 2 0 6 0;
#X connect 2 1 7 0;
#X connect 3 0 2 0;
#X connect 8 0 6 0;
#X connect 8 0 7 0;
#X connect 9 0 10 0;
#X connect 10 0 8 0;
#X connect 11 0 13 0;
#X connect 12 0 11 0;
#X connect 14 0 2 0;
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