| -----Original Message----- | From: boost-bounces@lists.boost.org | [mailto:boost-bounces@lists.boost.org] On Behalf Of Peter Dimov | Sent: 18 October 2006 17:35 | To: boost@lists.boost.org | Subject: Re: [boost] namespace for math function and | statistics distributions | | Paul A Bristow wrote: | | > Each statistical probability distribution, like negative_binomial | > includes a typedef | > | > typedef negative_binomial_distribution<double> | negative_binomial; // | > Reserved name of type double. | > | > so that users have the great convenience (when using | double - 99% of | > use?) | > | > of specifiying distributions thus | > | > using boost::math::negative_binomial; // default type is double. | > negative_binomial mydist(8., 0.25); | > | > rather than having to use the rather long full, type | specified name: | > | > negative_binomial_distribution<double> my8dist(8., 0.25); | | There's also the option of | | negative_binomial_distribution<> my8dist(8., 0.25); Thanks for this suggestion. It has prompted us to think again and conclude that a new namespace would be too big a hammer for such a small nut. A default RealType = double would be generally convenient, and we will just have to make an exceptionor the 3 cases of name clash when users will have to use the form binomial_distribution<> mydist(8., 0.25); rather than binomial mydist(8., 0.25); and similarly: beta_distribution<> mydist(8., 0.25); gamma_distribution<> mydist(8., 0.25); An acceptable nuisance to users, we think. Thanks Paul --- Paul A Bristow Prizet Farmhouse, Kendal, Cumbria UK LA8 8AB +44 1539561830 & SMS, Mobile +44 7714 330204 & SMS pbristow@hetp.u-net.com