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Re: st: problems with installing the quaids command

From   "Brian P. Poi" <>
Subject   Re: st: problems with installing the quaids command
Date   Fri, 31 Aug 2012 12:08:20 -0500

On 08/31/2012 11:53 AM, Nick Cox wrote:
Brian Poi of StataCorp is a member of Statalist and can no doubt
comment definitively, but a short provisional guess is that you cannot
run -quaids-, whatever it is precisely, because you have not installed
it from wherever it is published. This command, if it is one, is not
part of official Stata and must be installed on your machine before
you can run it.


On Fri, Aug 31, 2012 at 5:20 PM, Khalida Akhtar Choudhury
<>  wrote:

Everytime I try to run the quaids command, recently published by poi,
or maybe is still in the process of being published, I get the error
message quaids, unrecognised command quaids. I am using stata 12,
nevertheless i still have this problem.

-quaids- is a user-written command that accompanies a forthcoming Stata Journal article I have written.  The good news for users who fit demand systems is that you will no longer need to write a program using -nlsur- to fit an AIDS or QUAIDS model.  Just specify your expenditure share, price, and optional demographic variables, and it does the rest.  Post-estimation commands compute elasticities automatically.

I had previously been in correspondence with Khalida regarding demand systems and sent a preliminary version of the command for Khalida to try.  I have just followed up with a private message to help Khalida get it running, as it is not yet available for download via the -net- commands.

   -- Brian Poi
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