Rescale your data x to  (x-A)/(B-A).




Maithili Shiva <maithili_shiva@yahoo.com> 
Sent by: r-help-bounces@r-project.org
10/07/2009 08:39 AM

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Subject
[R] Parameters of Beta distribution






 
Supose I have a data pertaining to credit loss as
 
amounts <- 
c(46839.50,31177.12,35696.69,21192.57,29200.91,42049.64,42422.19, 
44976.18, 32135.36,47936.57,27322.91,37359.09,43179.60, 48381.02, 
45872.38, 28057.30,44643.83,36156.33,16037.62, 45432.28)
 
I am trying to fit Beta distribution (two parameters distribution but 
where lower bound and upper bounds are NOT  0 and 1 respectively). For 
this I need to estimate the two parameters of Beta distribution. I found 
some code in VGAM pacakge but it deals with standard Beta distribution 
i.e. lower bound (say A) = 0 and upper bound (say B) = 1.
 
How do I estimate the parameters of the Beta distribution for above data 
where A and B are not 0's?
 
Please guide.
 
Thanking you in advance
 
Maithili 


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