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st: Syntax syntax


From   "DOMINIC MUSTON" <DOMINIC.MUSTON@lshtm.ac.uk>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: Syntax syntax
Date   Tue, 18 May 2004 19:31:34 +0100

I'm pulling my hair out with this problem - I just can't see what's
wrong, so any help much appreciated! The problem I'm having contains
syntax for the "syntax" programming command.

A program I'm writing includes the line:

syntax [anything] [, PREffect(string)]

This is intended to pick-up an optional option called "preffect" (or
"pre" for short) with the contents of the brackets recorded as a string
variable.

The next line of my program is:

display preffect

Yet when I run the program specifying the preffect option (including
something in brackets), the "display" command displays nothing - it
appears that the contents of the bracket following the preffect option
in the command line have not been picked-up.

Why not? How can I get my program to pick-up the contents of the
option?

(What's the [anything] code about? Without it, I get a "varlist not
allowed" error. I guess putting [anything] in the program is not great
practice, but I would like to get the options problem sorted out
first.)

Thank you very much!

Dominic Muston.
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