Classes | Streams-Patterns-Events > Patterns > List

Pwrand : ListPattern : Pattern : AbstractFunction : Object

embed values randomly chosen from a list

Description

Returns one item from the list at random for each repeat, the probability for each item is determined by a list of weights which should sum to 1.0.

Class Methods

Inherited class methods

Undocumented class methods

Pwrand.new(list, weights, repeats: 1)

Instance Methods

Inherited instance methods

Undocumented instance methods

.embedInStream(inval)

.weights

.weights = value

Examples

(
var a, b;
a = Pwrand.new([1, 2, 3], [1, 3, 5].normalizeSum, 6);    // return 6 items
b = a.asStream;
7.do({ b.next.postln; });
)

//Prand used as a sequence of pitches:

(
SynthDef(\help_sinegrain,
    { arg out=0, freq=440, sustain=0.05;
        var env;
        env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction: Done.freeSelf);
        Out.ar(out, SinOsc.ar(freq, 0, env))
    }).add;
)


(
a = Pwrand([60, 61, 63, 65, 72], [10, 2, 3, 1, 3].normalizeSum, inf).asStream;
Routine({
    loop({
        Synth(\help_sinegrain, [\freq, a.next.midicps]);
        0.1.wait;
    })
}).play;
)