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RE: st: RE: simple programming question relating to lists


From   "Andreas Peichl" <a.peichl@wiso.uni-koeln.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   RE: st: RE: simple programming question relating to lists
Date   Wed, 14 Nov 2007 17:36:57 +0100

Richard,

This works on my machine:

set obs 10
gen y = _n
tab y, gen(yf)
local ny = r(r)
local vars yf1-yf`ny'
sum `vars'

Maybe your local vars is defined in a do file and then you try to access it
with sum after the do-file ends?

Cheers,
Andreas 

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Richard Boylan
Sent: Wednesday, November 14, 2007 5:14 PM
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: RE: simple programming question relating to lists

No, this does not work.

If I do this and type, for instance,

sum `vars'

I get the message

"yf. invalid name"

On Nov 14, 2007 10:03 AM, Nick Cox <n.j.cox@durham.ac.uk> wrote:
> One ` character too many.
>
> tab y, gen(yf)
> local ny = r(r)
> local vars yf1-yf`ny'
>
> Richard Boylan
>
> I have a simple programming question; I am sure it is answered
> someplace but I couldn't figure out the right keywords to search for
> it (I tried for a while!)
>
> Here is what I would like to do, but STATA does not let me do that.
>
>
> *create dummy variable for variable yf
> tab y, gen(yf)
>
> *  figure out how many dummy variables I have created
> local ny = r(r)
>
> * Here is the step that does not work
> * I would like to create a list including all the dummy variables I
> created
>
> local vars "yf1-yf``ny' "
>
> *
> *   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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