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st: Re: Re: Re: RE: Multiple commands under "By varlist"?

From   "Subhankar Nayak" <[email protected]>
To   <[email protected]>
Subject   st: Re: Re: Re: RE: Multiple commands under "By varlist"?
Date   Sat, 26 Jun 2004 10:48:44 -0400

Thanks Michael.
You are right.

The statsby in our mainframe version of stata seems very old.
I get the following info:

. which statsby
*! version 1.0.8  01jun2001

I will talk to my university system administrator to update these...

----- Original Message ----- 
From: "Michael Blasnik" <[email protected]>
To: <[email protected]>
Sent: Saturday, June 26, 2004 10:22 AM
Subject: st: Re: Re: RE: Multiple commands under "By varlist"?

> I wonder if you are using an up-to-date -statsby- that included some
> dramatic speed improvements for larger panel datasets like you are
> sing.  -which statsby- shows the following for me:
> *! version 2.0.5  13apr2004
> The key speed improvement is from doing away with the -if- statements in
> group identification in the code and instead using -in-.  I find that
> statsby with a regression on 1000 panels takes only slightly longer than
> by...:regress.  Your finding of 15-20x longer indicates that you are most
> likely using the older version.
> Michael Blasnik
> [email protected]

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