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Re: st: too many macros


From   Nick Cox <njcoxstata@gmail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: too many macros
Date   Thu, 30 Jun 2011 07:24:41 +0100

I'd use -set trace- to see exactly where the error occurs.

On a different note, there is no need to define these macros in a loop:

program myprog
syntax varlist
gettoken lhs rhs: varlist
tokenize "`rhs'"
...

Now the rhs variables collectively are in local macro -rhs- and
individually in macros -1- up.

On Thu, Jun 30, 2011 at 3:52 AM, Keith Dear <keithdear4@gmail.com> wrote:

> Is your program really called "prog"? That's not wise - you can define
> it, but how do you call it?
> Try a name that is not a reserved word (e.g. "myprog").
>
> That aside, I can't elicit that error message: your code works for me,
> even with 1000 rhs variables.
> Which version do you have? In Stata11, -help limits- does not mention
> any such limit, even for Small Stata.

> On 30 June 2011 12:01, ali hashemi <hashemi@vt.edu> wrote:

>> Is there any limit on the number of macros that can be defined in a program?
>> I am using local macros to read the regressors in the varlist. Here is the
>> syntax:
>>
>> program prog
>> syntax varlist
>> local N: word count `varlist'
>> gettoken lhs rhs: varlist
>> forval i=1/`N' {
>>        local x`i' : word `i' of `rhs'
>>        }
>> ...
>> end
>>
>>
>> The above code works fine when the number of variables in the varlist is
>> less than 18. However, in my case I have at least 400 variables in the
>> varlist and I get this error message: "too many macros"
>>
>> Is there anything wrong with the above code that causes this problem? If
>> there is a limit for the number of macros defined in the program how can I
>> call the regressors in the varlist?

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