[R] library/function that estimates parameters of well known distributions from empirical data?

Ted Byers r.ted.byers at gmail.com
Fri Sep 5 23:02:17 CEST 2008

Thanks Ben

That was the one I'd remembered but couldn't find.

Mark Leeds also told me about DistributionFits(fBasics), which I hadn't
seen.  There seems to be only a little overlap between the two.

Could I trouble you to expand on AIC (esp. what the function name and
package is to apply it to the output from these two functions)?  I just read
the help provided for each and neither mentions AIC.

Thanks again Ben


Ben Bolker wrote:
> Ted Byers <r.ted.byers <at> gmail.com> writes:
>> I found this a few months ago, but for the life of me I can't remember
>> what
>> the function or package was, and I have had no luck finding it this week.
>> I have found, again, the functions for working with distributions like
>> Cauchy, F, normal, &c., and ks.test, but I have not found the functions
>> for
>> estimating the distribution parameters given a vector of values.
>   Look at the fitdistr function in the MASS package.  Consider
> AIC comparisons for ranking the fits to these non-nested models.
>   good luck
>    Ben Bolker
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