[R] dirichlet models

[Spencer Graves]

  install.packages('sos') # if you haven't already
library(sos)
dch <- ???dirichlet
# found 288 matches = help pages on contributed packages
summary(dch)
# in 65 packages
dch
# lists the 288 matches in a table in a browser with links the help pages
# sorted to put the package with the most matches first


       As noted in the accompanying vignette, the "sos" package also 
supports union and intersection of "findFn" search objects (special 
data.frames) AND writing the results to an Excel file with the first 
sheet being a package summary and the second being the list of matches 
similar to that produced in the browser.


       Hope this helps.
       Spencer Graves
(lead author of "sos")


On 9/5/2010 8:07 AM, David Winsemius wrote:
>
> On Sep 5, 2010, at 10:53 AM, Donald Braman wrote:
>
>> Does anyone know of a package (or workaround) for fitting a dirichlet
>> distribution by maximum likelihood?
>
> Searching:
>
> RSiteSearch("fitting dirichlet distribution maximum likelihood")
>
> (Rapidly) produces this candidate:
>
> http://finzi.psych.upenn.edu/R/library/VGAM/html/dirichlet.html
>
>>
>> (I'm looking for something like this: 
>> http://repec.org/bocode/d/dirifit.html,
>> that allows for both dependent variables summing to 1 & predictive 
>> variables
>> of any sort.)
>>
>> Don
>>
>>
>> -- 
>> Donald Braman

-- 
Spencer Graves, PE, PhD
President and Chief Operating Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San José, CA 95126
ph:  408-655-4567