Well, that's correct then. But I am now completely unclear
on what is going wrong.
Here is an extract from the FAQ:
"Say exactly what you typed and exactly what Stata typed
(or did) in response. N.B. exactly! If you can, reproduce
the error with one of Stata's provided datasets or a simple
concocted dataset that you include in your posting."
Nick
[email protected]
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On Behalf Of
> DOMINIC MUSTON
> Sent: 18 May 2004 20:00
> To: [email protected]
> Subject: st: RE: Syntax syntax
>
>
> Thanks for that Nick. (And so quick too!) I'm afraid I made a rather
> crucial typo in my email. The command that follows "syntax ..." is
> actually:
>
> display `preffect'
>
> ie: with the quotes.
>
> Any suggestions?
>
> Dominic
>
> From "Nick Cox" <[email protected]>
> To <[email protected]>
> Subject st: RE: Syntax syntax
> Date Tue, 18 May 2004 19:40:09 +0100
>
> --------------------------------------------------------------
> ------------------
>
> After this syntax, what is specified
> in -preffect()- will be visible as `preffect'.
> This will be a string (emphatically not
> a string variable). The ` ' are essential.
>
> di preffect
>
> by itself will be interpreted as
> a reference to a variable -preffect-,
> in fact to -preffect[1]-, which evidently
> you don't have.
>
> If you don't have anything compulsory before
> the options the syntax should be
>
> syntax [, PREffect(string)]
>
> Nick
> [email protected]
>
> > -----Original Message-----
> > From: [email protected]
> > [mailto:[email protected]]On Behalf Of
> > DOMINIC MUSTON
> > Sent: 18 May 2004 19:32
> > To: [email protected]
> > Subject: st: Syntax syntax
> >
> >
> > 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.)
> >
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