R help - Aug 2009 - Log logistic Distribution - Parameter estimation

Dear R helpers,

I have following data

c(19679.50,5975.72,17555.52,20078.08,1956.97,8383.25,7899.27,4881.75,2719.29,11701.96,13104.25,10081.01,9417.72,14976.89,7119.62,8373.56,24580.52,8330..70,9110.07,7848.08,12910.46,10310.53,20390.34,15824.71,21703.33)


How do I fit 3 parameter Log Logistic distribution to this data?

Thanking in advance

Maithili




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Maithili Shiva wrote:
> Dear R helpers,
> 
> I have following data
> 
>
c(19679.50,5975.72,17555.52,20078.08,1956.97,8383.25,7899.27,4881.75,2719.29,11701.96,13104.25,10081.01,9417.72,14976.89,7119.62,8373.56,24580.52,8330..70,9110.07,7848.08,12910.46,10310.53,20390.34,15824.71,21703.33)
> 
> 
> How do I fit 3 parameter Log Logistic distribution to this data?
> 
> Thanking in advance
> 
> Maithili
> 
Log logistic is, after reparametrization, a subset of the generalized
logistic distribution used in package lmom, so function pelglo in that
package, together with a bit of algebra, should get you there.


J. R. M. Hosking