Re: [Boost-users] [random] present library status and doc

Subject: Re: [Boost-users] [random] present library status and doc
From: er (erwann.rogard_at_[hidden])
Date: 2010-02-02 09:06:55

>>
> 
> So does your code solve this problem?

The current mapping applies a scaling factor to 
boost::gamma_distribution and apparently the resulting empirical cdf 
converges to the true cdf...

> 
> I've looked at your code but I fail to create a test case. I would
> like to compare the result of your code with other tools like R,

Sure, double checking is a good idea. Among your included directories 
you should have:

#include 
<boost/statistics/detail/distribution_toolkit/distributions/gamma/include.hpp>

OR

#include 
<boost/statistics/detail/distribution_toolkit/distributions/gamma/random.hpp>

These have to be in the search path.

/sandbox/statistics/non_parametric/
/sandbox/statistics/distribution_common/
/sandbox/statistics/distribution_toolkit/
/sandbox/statistics/random/
/usr/local/boost_1_41_0/

but I have just removed a deprecated dependency so please check out again.

To be certain, here's a small subset that I just compiled:

#include <boost/typeof/typeof.hpp>
#include <boost/random/mersenne_twister.hpp>
#include 
<boost/statistics/detail/distribution_toolkit/distributions/gamma/include.hpp>
#include 
<boost/statistics/detail/distribution_common/meta/random/generator.hpp>

void example_gamma(){

     namespace stat = boost::statistics::detail;
     namespace dist = stat::distribution;
     typedef double val_;
     typedef boost::mt19937 urng_;

     typedef boost::math::gamma_distribution<val_>            dist_;
     const val_ shape = 2.0;
     const val_ scale = 3.0;
     dist_ d( shape, scale );

     urng_ urng;
     BOOST_AUTO(
        vg,
        dist::make_random_generator(urng,d)
     );
        
}

Please let me know if you have any other issues.