On Thu, Apr 9, 2009 at 17:34, ANJAN PURKAYASTHA <anjan.purkayas...@gmail.com> wrote: > I need a Bernoulli random number generator which takes as inputs: a value > for p(1) (probability of choosing a "1") and the number of trials and > outputs a series of 0s and 1s according to the model B(p(1)). > Any thoughts on which module I need to use? snip
When you need something the first place to look is CPAN[1]. The Math::GSL[2] module has a function sounds like it fits your needs: gsl_ran_bernoulli($r, $p) - This function returns either 0 or 1, the result of a Bernoulli trial with probability $p. The probability distribution for a Bernoulli trial is, p(0) = 1 - $p and p(1) = $p. $r is a gsl_rng structure. gsl_ran_bernoulli_pdf($k, $p) - This function computes the probability p($k) of obtaining $k from a Bernoulli distribution with probability parameter $p, using the formula given above. 1. http://search.cpan.org/ 2. http://search.cpan.org/dist/Math-GSL/lib/Math/GSL/Randist.pm -- Chas. Owens wonkden.net The most important skill a programmer can have is the ability to read. -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
