I suggest you go to "www.r-project.org" -> CRAN -> (select a
local
mirror) -> Packages. Among the offerings there, you will find the
following:
distr Object orientated implementation of distributions
distrEx Extensions of package distr
distrSim Simulation classes based on package distr
distrTEst Estimation and Testing classes based on package distr
I don't know that any of these will solve your problem, but if you
try them and still have problems, I suggest you then PLEASE do read the
posting guide! "www.R-project.org/posting-guide.html", and submit
another question based on what you've learned in the interim.
Hope this helps.
spencer graves
suhaila at mel.fs.utm.my wrote:
> Hi!
> Recently I try to find the method maximum
> likelihood for gamma,weibull,Pearson type III,Kappa Distribution,
> mixed exponential distribution, skew distribution.
> I have tried function ms() for gamma two parameters and weibull two
> parameters.It works but not for Pearson type III. I have problem to find
> the likelihood function for mixed exponential distribution and kappa
> distribution.
> So can anyone tell me the programming for those functions?
> especially in finding their maximum likelihood,because I have trouble to
> write down the likelihood function for mixed exponential distribution and
> the other two.If possible ,how to get the hessian matrix?
> Currently I am using SPlus 6.2.
>
> Thanks.
> suhaila
>
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http://www.R-project.org/posting-guide.html