Stata The Stata listserver
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

RE: st: RE: collapse panel data for each year


From   "Nick Cox" <n.j.cox@durham.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: collapse panel data for each year
Date   Fri, 28 May 2004 17:26:30 +0100

Sounds like 

... , by(country year) 

The keyword is "include".

Nick 
n.j.cox@durham.ac.uk 

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu]On Behalf Of sarah smith
> Sent: 28 May 2004 17:15
> To: statalist@hsphsun2.harvard.edu
> Subject: RE: st: RE: collapse panel data for each year
> 
> 
> Hi Nick,
> If I use collapse as below:
> 
> collapse x y, by(country)
> 
> It is not useful for me since I need to run collapse for the 
> data portions 
> in each of the 20 years.
> Best,
> Sarah
> 
> 
> 
> >From: "Nick Cox" <n.j.cox@durham.ac.uk>
> >Reply-To: statalist@hsphsun2.harvard.edu
> >To: <statalist@hsphsun2.harvard.edu>
> >Subject: st: RE: collapse panel data for each year
> >Date: Fri, 28 May 2004 16:53:46 +0100
> >
> >Once you've -collapse-d the data once, you
> >have a new dataset, so I can't see that
> >you'd want to do this in a loop.
> >
> >At first glance you just need to include
> >the variable for country in the -by()- option.
> >
> >Nick
> >n.j.cox@durham.ac.uk
> >
> >sarah smith
> > >
> > > I have panel data for several industries in 40 countries for
> > > 20 years. For
> > > each year, I am trying to collapse the data by country. I
> > > tried to use
> > > foreach and forvalues commands, but could not work it out. I would
> > > appreciate if you can help me.
> >
> >*
> >*   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/
> 
> _________________________________________________________________
> FREE pop-up blocking with the new MSN Toolbar - get it now! 
> http://toolbar.msn.click-url.com/go/onm00200415ave/direct/01/
> 
> *
> *   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/



© Copyright 1996–2014 StataCorp LP   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index