Re: st: RE: programs with options

[Jean-Benoit Hardouin <jean-benoit.hardouin@club-internet.fr>]

See for example

program define testop

syntax varlist(min=2 numeric) [,option1 option2]
local nbitems : word count `varlist'

forvalues i=1/`nbitems' {
di "``i''"
}
end

.testop var1 var2 ,option1
var1
var2

.testop var1 var2, option1
var1
var2,

.testop var1 var2,option1
var1
var2,option1

How can I use the name of the second variable in my program without the 
comma if this one is not separated by a blank of the last variable ?
Jean-benoit Hardouin


On Fri, 11 Jul 2003 15:21:38 +0100, Nick Cox <n.j.cox@durham.ac.uk> wrote:


> Jean-Benoit Hardouin
>
> > When I write a program with options, I must put a space between the last 
> > variable and the comma, else Stata don't understand that the last 
> > variable is "varK" and not "varK,". How resolve this problem.
> >
> > I have try to write my syntax line as :
> > syntax varlist[,option1 option2] instead of
> > syntax varlist [,option1 option2] but I obtain the same result.
> >
> > Example with an xxx program :
> > xxx var1 var2 var3, option1 option2
> > =>, invalid name
> > =>r(198);
> >
> > xxx var1 var2 var3 , option1 option2
> > =>OK
> I think you must show us _exactly_ what your real program is. My guess is 
> that you have a problem, but it is not this.
>
> If I write a program
>
> program p1 	version 8 	syntax varlist[,foo bar] 	di "is OK" end 	
>
> then things work OK with
>
> .. p1 mpg weight
>
> .. p1 mpg weight,foo
>
> .. p1 mpg weight, foo
>
> .. p1 mpg weight , foo
>
> .. p1 mpg weight ,foo
>
> -- so in terms of both (a) how the program is written (b) what you fire 
> at it, Stata is not fussed.
>
> In practice, I would write something more like
>
> program p1 	version 8 	syntax varlist [, foo bar] 	di "is OK" end 	
>
> but that's personal style reference (and also -- and this is of some 
> importance -- closer to Stata Corp's house style and the style of most 
> Stata programmers).
>
> Nick n.j.cox@durham.ac.uk
>
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