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RE: st: Beta transformation-- standardization technique


From   "Juanita Riano" <jriano@transparency.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: Beta transformation-- standardization technique
Date   Fri, 10 Jul 2009 17:40:16 +0200

Thank you Tirthankar!

Juanita
-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Tirthankar Chakravarty
Sent: 10 July 2009 17:32
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: Beta transformation-- standardization technique

<>
Here's an example:

*** begin
clear*
sysuse auto
g x = log(price)/10
g new = (exp(lngamma(2))*exp(lngamma(1))/exp(lngamma(3)))*ibeta(2,1,x)
// alpha = 2, beta = 1
su new
*** end

T

On Fri, Jul 10, 2009 at 4:17 PM, Tirthankar
Chakravarty<tirthankar.chakravarty@gmail.com> wrote:
> <>
> help ibeta
>
>
> What you want can be written as:
> (gamma(a)*gamma(b)/gamma(a+b))*ibeta(a,b,x)
>
> T
>
> On Fri, Jul 10, 2009 at 3:58 PM, Juanita Riano<jriano@transparency.org> wrote:
>> Thanks for the suggestion Roy, maybe I was not clear enough with my
>> posting. What I need is to transform my data solving the following
>> integral:
>>
>> Integral of [X^(alpha-1)*(1-X)^(Beta-1)] where alpha and beta are known
>> parameters
>>
>> Juanita
>>
>> -----Original Message-----
>> From: owner-statalist@hsphsun2.harvard.edu
>> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Roy Wada
>> Sent: 10 July 2009 16:39
>> To: statalist@hsphsun2.harvard.edu
>> Subject: RE: st: Beta transformation-- standardization technique
>>
>>> I am wondering if anyone knows of any routine in Stata that I could
>> use
>>> for standardizing data using a beta transformation technique for which
>> I
>>> have already the parameters.
>>>
>>> Juanita
>>
>> Take a look at -betacoef- by Kit Baum from ssc.
>>
>> Roy
>>
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>
>
>
> --
> To every ω-consistent recursive class κ of formulae there correspond
> recursive class signs r, such that neither v Gen r nor Neg(v Gen r)
> belongs to Flg(κ) (where v is the free variable of r).
>



-- 
To every ω-consistent recursive class κ of formulae there correspond
recursive class signs r, such that neither v Gen r nor Neg(v Gen r)
belongs to Flg(κ) (where v is the free variable of r).

*
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Transparency International is the global civil society organisation leading the fight against 
corruption.
www.transparency.org

This email is confidential and intended for the addressee only. If you are not the intended 
recipient, any use, disclosure, distribution, printing or copying of this email is unauthorised.
If you have received this email in error, please immediately notify the sender by replying to the 
email, then delete all copies from your computer. This email and its attachments have been swept 
for computer viruses but Transparency International accepts no responsibility whatsoever for damage
caused by viruses in connection with this email. Transparency International may monitor all emails
and attachments as it is presumed that they are sent or received in connection with the activities
of TI and to ensure the integrity of its computer systems. Statements and opinions contained in 
this email are those of the sender, not necessarily of Transparency International.

*
*   For searches and help try:
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