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Re: st: Using a scalar/macro for loop limit in building Sureg equations


From   "Thomas Jacobs" <thomasjacobs@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Using a scalar/macro for loop limit in building Sureg equations
Date   Mon, 3 Nov 2008 16:45:15 -0600

Maarten,

Thanks, both versions worked as you suggested.  Is there any reason
why a scalar is a bad choice here?  I ask because of the wording you
used about "insisting" upon it vs. "easier" to use a macro, etc.

Tom

On Mon, Nov 3, 2008 at 4:17 PM, Maarten buis <maartenbuis@yahoo.co.uk> wrote:
> --- Thomas Jacobs <thomasjacobs@gmail.com> wrote:
>> summ Companies
>> scalar Count = r(max)
>>
>> but I keep getting errors when I try to substitute Count into my
>> forvalues statement:
>>
>> .
>> . forvalues i=1/Count{
>>   2.         local eqn "`eqn' (LnRtFiveYrMid`i'
>> L(1/2).LnRtFiveYrMid`i' L(0/4).LnRtCDX LnRtC
>> > MT LnRtTED L(0/2).LnRtStock`i') "
>>   3. }
>> invalid syntax
>
> If you insist on using a scalar in this context you can type:
>
> forvalues i = 1/`=scalar(Count)' {
>
> Easier is to store the count in a local:
>
> summ Companies
> local Count = r(max)
> forvalues i=1/`Count'{
>
> Hope this helps,
> Maarten
>
> -----------------------------------------
> Maarten L. Buis
> Department of Social Research Methodology
> Vrije Universiteit Amsterdam
> Boelelaan 1081
> 1081 HV Amsterdam
> The Netherlands
>
> visiting address:
> Buitenveldertselaan 3 (Metropolitan), room N515
>
> +31 20 5986715
>
> http://home.fsw.vu.nl/m.buis/
> -----------------------------------------
>
>
>
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-- 
Thomas Jacobs
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