Re: st: how do i increment a counter

[Christian Holz <statalist@krueschan.de>]

Annemarie,
your example seems to be quite confused... a good advice might be to 
make sure that you truly understand the differences between variables 
and macros - the code you presented gives the impression that you 
confuse these concept a bit.
Implementing a counter in Stata, however, is pretty easy. Try something like

local i=0
foreach a of numlist 1/20 {
  local i=`i'+1
  di `i'
}

If you'd provide some more detail on what you're planning to do some 
more advice could potentially be given.

Cheers,
Christian
---
Christian Holz
Department of Sociology
University of Glasgow
Scotland, U.K.



aine dooley wrote:

> I am finding in Stata that there does not seem to be an easy way to 
> increment a counter despite countless trys and readings of the manal.
>
> I want to do something llike the following, this is just an example:
>
> generate byte total_sum =0
>
> for each variable of varlist {
> if age > 50
>    total_sum = total_sum + age
> }
>
> Stata doesn't seem to allow the if... then construct unless it is in a 
> program. Although I have written a simple program (crazy that I have to 
> do this) passing arguments, I still can't get it to work.
>
> I must be missing something.
>
> -Annemarie
>
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