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authorHans-Christoph Steiner <eighthave@users.sourceforge.net>2005-04-28 00:25:05 +0000
committerHans-Christoph Steiner <eighthave@users.sourceforge.net>2005-04-28 00:25:05 +0000
commit061e4be1f20ac78e3b52bc6429322d5fadcf5831 (patch)
treec6449d7cf4a19547b97d234ef4c65251ee766c1d /doc/pddp/help-random.pd
parente30864640368dc4c25c309fb83365807955e832e (diff)
cleaned up a number of patches; renamed all to the standard -help.pd format; added some more ideas to the style guide; finished up lists_vs_anythings
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-#N canvas 14 -1 978 651 10;
-#X obj 20 11 random;
-#X text 70 11 - pseudorandom integer generator;
-#X text 20 47 [random] outputs pseudorandom integers between 0 and
-N-1 where N is the creation argument or the value of the right inlet.
-;
-#X obj 28 117 random 100;
-#X obj 28 98 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X floatatom 28 138 3 0 0;
-#X text 98 117 Generates random numbers between 0 and 99;
-#X obj 28 178 random 100;
-#X obj 28 159 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X floatatom 28 199 3 0 0;
-#X floatatom 83 161 5 0 0;
-#X text 124 159 Changes the 'range' of random numbers.;
-#X text 17 223 SEEDS;
-#X text 21 240 Random numbers are generated via a complex equation
-which produces a pseudo-predictable sequence of numbers. Each [random]
-object's equation is provided with a "seed" which is really just one
-of the variables in the equation which produces the sequence. The "seed"
-is generated by PD based on specific parameters in each patch which
-contains a [random] object. If more than one [random] objects are contained
-within a single patch \, they each get a different "seed".;
-#X text 21 363 However \, "seeds" can be inputted into [random] by
-sending a message \, like below:;
-#X msg 13 420 seed 42;
-#X obj 67 427 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 67 445 random 1000;
-#X floatatom 67 465 3 0 0;
-#X obj 13 400 loadbang;
-#X text 22 490 Seeds are kept locally so that if two [random]s are
-seeded the same \, they will have the same output - as demonstrated
-below. Furthermore \, you can seed the same one twice to repeat the
-output.;
-#X msg 162 556 seed 42;
-#X obj 76 559 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 76 591 random 1000;
-#X floatatom 76 611 3 0 0;
-#X obj 162 536 loadbang;
-#X obj 150 591 random 1000;
-#X floatatom 150 611 3 0 0;
-#X obj 385 12 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 385 620 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X text 425 18 FERTILE SEEDS!;
-#X text 416 39 While the "default" seed for each [random] is usually
-very effective \, it may be necessary to find better - more unpredictable
-- more indeterminate ways to seed the object to produce a more pleasing
-result.;
-#X text 415 144 Here are some ideas that may improve the implementation
-of [random]:;
-#X floatatom 593 241 0 0 0;
-#X obj 435 182 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 593 221 / 100;
-#X floatatom 435 238 0 0 0;
-#X text 455 181 Both methods here produce random numbers between 0
-and 5;
-#X obj 593 201 random 501;
-#X obj 435 218 random 6;
-#X text 660 201 0 - 500;
-#X text 631 221 divide by 100 to keep output within range.;
-#X text 631 242 produces fractional results between 0 and 5;
-#X text 432 269 between 0 and 5;
-#X text 432 256 Produces whole numbers;
-#X text 401 179 1;
-#X text 405 306 2;
-#X text 416 94 As well \, there are many ways that [random] can be
-incorporated into other structures that change the qualities of the
-results.;
-#X obj 436 315 loadbang;
-#X obj 436 337 timer;
-#X obj 518 318 bng 15 250 50 0 empty empty Click_to_seed 0 -6 0 7 -262144
--1 -1;
-#X msg 436 357 seed \$1;
-#X obj 497 360 bng 15 250 50 0 empty empty Click_for_output 0 -6 0
-7 -262144 -1 -1;
-#X floatatom 497 400 5 0 0;
-#X obj 497 379 random 42;
-#X text 598 317 "Time is on your side". Using the [timer] object here
-(which is started via loadbang) is an interesting trick.;
-#X text 407 432 3;
-#N canvas 0 0 462 404 weighted_random_numbers 0;
-#X msg 38 77 bang;
-#X text 24 20 You can generate weighted random numbers from uniformly
-distributed ones. If you just want two possible outcomes with a varying
-probability for each one \, you can do as shown:;
-#X obj 38 103 random 100;
-#X obj 37 156 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 104 156 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X floatatom 140 130 3 0 100;
-#X text 185 130 <-- change probablilty;
-#X obj 38 131 moses 80;
-#X text 87 75 <-- click to test;
-#X text 35 184 This outputs a number at left 80% of the time \, otherwise
-at right \, unless you override the "80" using the number box. You
-may extend this to more than two possible outcomes \, for instance
-like this:;
-#X msg 42 247 bang;
-#X obj 42 273 random 100;
-#X obj 42 326 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X obj 132 327 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X text 91 245 <-- click to test;
-#X obj 42 301 moses 10;
-#X obj 132 302 moses 30;
-#X obj 200 327 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
--1;
-#X text 40 342 10%;
-#X text 130 343 20%;
-#X text 202 342 70%;
-#X connect 0 0 2 0;
-#X connect 2 0 7 0;
-#X connect 5 0 7 1;
-#X connect 7 0 3 0;
-#X connect 7 1 4 0;
-#X connect 10 0 11 0;
-#X connect 11 0 15 0;
-#X connect 15 0 12 0;
-#X connect 15 1 16 0;
-#X connect 16 0 13 0;
-#X connect 16 1 17 0;
-#X restore 443 432 pd weighted_random_numbers;
-#X text 215 556 Click again to repeat output.;
-#X text 409 474 RELATED OBJECTS;
-#N canvas 0 0 454 304 related_objects_from_other_libraries 0;
-#X obj 25 23 randomF;
-#X obj 77 23 tripleRand;
-#X obj 146 23 shuffle;
-#X obj 197 23 mtx_rand;
-#X obj 149 47 pin~;
-#X obj 25 47 randomblock~;
-#X obj 109 47 utime;
-#X text 29 104 These objects are offered in PD only if you have downloaded
-and properly installed the appropriate library. These objects may or
-may not exist in a single library.;
-#X text 28 153 The best places to find information about PD's libraries
-is:;
-#X text 25 175 www.puredata.org and click on "Downloads" then "Software"
-;
-#X text 27 190 or;
-#X text 27 205 iem.kug.ac.at/pdb/;
-#X restore 408 494 pd related_objects_from_other_libraries;
-#X text 416 592 This document was updated for PD version 0.35 test
-29 by Dave Sabine as part of a project called pddp proposed by Krzysztof
-Czaja to build comprehensive documentation for PD.;
-#X connect 3 0 5 0;
-#X connect 4 0 3 0;
-#X connect 7 0 9 0;
-#X connect 8 0 7 0;
-#X connect 10 0 7 1;
-#X connect 15 0 17 0;
-#X connect 16 0 17 0;
-#X connect 17 0 18 0;
-#X connect 19 0 15 0;
-#X connect 21 0 23 0;
-#X connect 21 0 26 0;
-#X connect 22 0 23 0;
-#X connect 22 0 26 0;
-#X connect 23 0 24 0;
-#X connect 25 0 21 0;
-#X connect 26 0 27 0;
-#X connect 28 0 29 0;
-#X connect 34 0 38 0;
-#X connect 34 0 39 0;
-#X connect 35 0 33 0;
-#X connect 38 0 35 0;
-#X connect 39 0 36 0;
-#X connect 48 0 49 0;
-#X connect 49 0 51 0;
-#X connect 50 0 49 1;
-#X connect 51 0 54 0;
-#X connect 52 0 54 0;
-#X connect 54 0 53 0;