Re: [Boost-users] [Math/Statistical Distributions+Random] Random number generation

Subject: Re: [Boost-users] [Math/Statistical Distributions+Random] Random number generation
From: er (erwann.rogard_at_[hidden])
Date: 2009-08-21 22:22:35

Marco Guazzone wrote:

> 
> Thank you!
> I've taken a look... Very interesting.

Thanks.

> 
> But. why using different statistical distribution classes
> 
> #include <boost/standard_distribution/distributions/gamma.hpp>
> 

This file does not define a new gamma distribution, only extra, non 
overlapping functionality. For example, you can map the gamma 
distribution to the gamma random engine :

typedef boost::math::gamma_distribution<T,P> gamma_;
typedef dist_random< gamma_ > meta;
typedef meta::type random_;
gamma_ gamma(5.0);
random_ r = meta::make(gamma);

> What I mean is that I think an integration between Boost.Random and
> Boost.StatisticalDistribution would be very useful for users

Perhaps, but it's not under my control. Anyhow, if you do e.g

   generate_n(it,n,gamma,urng);

the interface make no reference to boost/random (hidden in implementation)