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Re: st: Syntax for options in a program

From   "Stas Kolenikov" <[email protected]>
To   [email protected]
Subject   Re: st: Syntax for options in a program
Date   Wed, 13 Aug 2008 15:08:36 -0500

Option -saving- is required the way you specified it in the syntax
command. If it were [saving(string)] then it would be optional. As for
the "invalid syntax" message, it could come up from almost anywhere --
specify -set trace on; set tracedepth 2;- to see where exactly.

On 8/13/08, Marco Petracco <[email protected]> wrote:
> Dear StataListers,
>  I have been trying to crack this using the manual and online help, but I don't seem to be able to come out on top of it. I am writing a short program which should take a list of variables and give me back a set of Kernel graphs and also save the results in a series of files, the "root" of which name should be provided by the user.
>  However, no matter how I specify the value of the "saving" option (i.e. within parentheses and braces, parentheses only, braces only ...) I get a "syntax error" or an "option saving() required" error message.
>  Can anybody help me spot what I am doing wrong?
>  Thanks in advance for any help.
>  Regards,
>  Marco
>  I copy here under the program:
>  program dokern, byable(recall) sortpreserve
>  # delimit;
>         version 9;
>         syntax varlist [if] [in] , SAVing(string) ;
>         foreach `q' of local `_byvars' {;
>                 sort `q';
>                 marksample touse;
>                 foreach i of local `varlist' { ;
>                                 twoway (kdensity `i') if `touse', ylabel(, angle(horizontal) labsize(vsmall)) xlabel(0(100)1000, labsize(tiny)) caption("Kernel density of `i' by `touse'") saving( `saving'_`i'_by`touse', replace ) ;
>                                 graph export `saving'_`i'_by`touse'.ps, replace ;
>                 } ;
>         };
>  end;
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Stas Kolenikov, also found at
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