SuperCollider CLASSES

Ppoisson

random values that follow a Poisson Distribution (positive integer values)
Inherits from: Pattern : AbstractFunction : Object

Class Methods

*new (mean: 1, length: inf)

Arguments:

mean

The mean of the distribution.

length

Number of values produced.

Inherited class methods

Instance Methods

Inherited instance methods

Undocumented instance methods

-embedInStream (inval)

-length

-length = value

-mean

-mean = value

Examples

(
var a, c, w;
a = Ppoisson(1.0, inf);
c = a.asStream.nextN(500);
w = Window.new("Ppoisson", Rect(10, 10, 540, 800));
// plot the values
c.plot(bounds: Rect(10, 10, 520, 380), discrete: true, parent: w);
// a histogram of the values
c.histo(500).plot(bounds: Rect(10, 410, 520, 380), parent: w);
)

(
var a, c, w;
a = Ppoisson(10.0, inf);
c = a.asStream.nextN(500);
w = Window.new("Ppoisson", Rect(10, 10, 540, 800));
// plot the values
c.plot(bounds: Rect(10, 10, 520, 380), discrete: true, parent: w);
// a histogram of the values
c.histo(500).plot(bounds: Rect(10, 410, 520, 380), parent: w);
)

// sound example
(
SynthDef(\help_sinegrain,
    { arg out=0, freq=440, sustain=0.05;
        var env;
        env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction:2);
        Out.ar(out, SinOsc.ar(freq, 0, env))
    }).add;
)

(
var a;
a = Ppoisson(1.0,inf).asStream;
{
    loop {
        Synth(\help_sinegrain, [\freq, (a.next + 72).midicps]);
        0.02.wait;
    }
}.fork;
)

(
var a;
a = Ppoisson(7.0,inf).asStream;
{
    loop {
        Synth(\help_sinegrain, [\freq, (a.next + 72).midicps]);
        0.02.wait;
    }
}.fork;
)