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st: Re: RE: Time taken for reshape command


From   "Subhankar Nayak" <nayak@bellsouth.net>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Re: RE: Time taken for reshape command
Date   Tue, 18 May 2004 12:13:46 -0400

Sorry for missing out those details.
My machine is 2.33GHz, 1GB RAM
I have allocated 32M memory to Stata

Thanks.

----- Original Message ----- 
From: "Nick Cox" <n.j.cox@durham.ac.uk>
To: <statalist@hsphsun2.harvard.edu>
Sent: Tuesday, May 18, 2004 12:07 PM
Subject: st: RE: Time taken for reshape command


> I would have thought that more information 
> was needed on your machine set-up and how 
> much memory you asked of Stata to assess this. 
> 
> Nick 
> n.j.cox@durham.ac.uk 
> 
> > -----Original Message-----
> > From: owner-statalist@hsphsun2.harvard.edu
> > [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of Subhankar
> > Nayak
> > Sent: 18 May 2004 17:05
> > To: statalist@hsphsun2.harvard.edu
> > Subject: st: Time taken for reshape command
> > 
> > 
> > Hello all,
> > 
> > The "reshape" command that I am using takes an extremely long 
> > time and I am
> > not sure whether this is normal.
> > Let me mention the details.
> > 
> > I have 1000 observations and 926 variables.
> > 
> > Variable: "ID"  takes values from 1 through 1000. (denoting 
> > 1000 companies)
> > Variable  "Y"   is a specific corporate value
> > 924 variables: X1 through X924 denote the 924 past stock prices.
> > 
> > I am reshaping it in the long format into 924000 observations and 3
> > variables (ID,Y,X) using
> > reshape long X, i(ID) j(DAYS)
> > 
> > This single command takes 10-12 minutes to process.
> > Is this normal?
> > 
> > Thanks.
> > 
> > 
> > *
> > *   For searches and help try:
> > *   http://www.stata.com/support/faqs/res/findit.html
> > *   http://www.stata.com/support/statalist/faq
> > *   http://www.ats.ucla.edu/stat/stata/
> > 
> 
> *
> *   For searches and help try:
> *   http://www.stata.com/support/faqs/res/findit.html
> *   http://www.stata.com/support/statalist/faq
> *   http://www.ats.ucla.edu/stat/stata/
> 

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



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