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Re: st: if not iffing in ado


From   Neil Shephard <nshephard@nhs.net>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: if not iffing in ado
Date   Thu, 09 Oct 2008 09:10:25 +0100

Paul O'Brien wrote:
> i have a small program to temporarily swap variables using swapval.
> but i cannot get the 'if' to work.
>
> program swap
> // used to swap treatment and control (iud r and se)
> version 10
> syntax [if]
> swapval iud1 iud2
> swapval r1 r2
> swapval se1 se2
> ...
> end
>
You defining your command to use the -if()- option, but you don't
actually use it anywhere in your code.  Perhaps you want to something
like...

// Note the added 'define'
program define swap
// used to swap treatment and control (iud r and se)
version 10
syntax [if]
// Use the `if' statement
if( `if' == 1){
  swapval iud1 iud2
  swapval r1 r2
  swapval se1 se2
  ...
}
end

See -man syntax##description_of_if- and -help ifcmd- for more information.

Neil

-- 
"We should make things as simple as possible, but not simpler" - Anon (not Albert Einstein)


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