NAME

PDL::RandVar::Histogram -- Arbitary distribution random variables

VERSION

Current version is 1.0

SYNOPSIS

use PDL::RandVar::Histogram
$m = new PDL::RandVar::Histogram($dist);

DESCRIPTION

Histogram random variables are useful for generating distributions to match arbitrary vector (N-D) data. On initialization, you feed in a clumped array whose value is proportional to the probability of landing in each bin. You get back values of indices into the original vector. If you ask for it, you can get subsampling in the mantissa of each index.

History

1.0   11-Dec-2001 -- Basic functionality & testing (CED)

Author, license, no warranty

This file copyright(C) 2001, 2002 Craig DeForest (cdeforest@solar.stanford.edu). This software/documentation may be distributed under the same terms as PDL itself (license available at http://pdl.perl.org). This package comes with NO WARRANTY.

Bugs:

Runs a little slow -- hooking into the gnu package will work better.

Functions

new

Construct a new histogram-distribution random variable

Signature: (See PDL::PDL::RandVar::new)

$a = new PDL::RandVar::Histogram(<size>,<opt>);

Options:

seed

A number to use as the seed.

$a = new PDL::RandVar::Histogram($dist);
$xy = sample $a;