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: [email protected]
[mailto:[email protected]] On Behalf Of Richard Boylan
Sent: Wednesday, November 14, 2007 5:14 PM
To: [email protected]
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 <[email protected]> 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/
