[chuck-users] include/import (am noob)

Michael Heuer heuermh at gmail.com
Mon Mar 5 17:52:24 EST 2012

George Locke wrote:

> I want to make a library of functions that I can call from any chuck script.
>  If I put those functions in one file, how do I access them from another?
>  It would be great if I could make them into a new namespace, akin to Std.X
> or Math.X (I am using miniAudicle 0.2.0, not command line.)
> (I checked the language specification for the words "include" and "import"
> and found nothing relevant.)

Machine.add("filename.ck"); loads filename.ck on a separate shred.

There is no include/import or namespace mechanism in ChucK.

> PS is there a popular/built-in solution for making exponentially
> distributed, normally distributed, etc random variables?

No.  I would love to see such.  I ported this just recently but
haven't tested it yet

    // adapted from org.apache.commmons.math3.random.AbstractRandomGenerator,
    // which implements the Polar Method, due to G.E.P. Box, M.E.
Muller and G. Marsaglia,
    // as described in D. Knuth, _The Art of Computer Programming_, 3.4.1C.
    fun static float nextGaussian()
        0.0 => float v1;
        0.0 => float v2;
        1.0 => float s;
        while (s >= 1.0)
            2.0 * Std.randf() - 1.0 => v1;
            2.0 * Std.randf() - 1.0 => v2;
            s = v1 * v1 + v2 * v2;
        if (s > 0.0)
            s = Math.sqrt(-2.0 * Math.log(s)/s);
        v2 * s => cached;
        return v1 * s;

> PPS If not, I'd be happy to share my work - is there a common way for people
> to share code like this?

This mailing list, or the ChucK wiki


or e.g. github



More information about the chuck-users mailing list