The subject of semi-colons as line delimiters came up in a recent exchange
between Nick Cox Socrates Mokkas as follows (in part)
-----------------------------------------------------------------
Date: Thu, 19 Oct 2006 11:31:58 +0100
From: "Nick Cox" <[email protected]>
Subject: st: RE: Re: Foreach nested in Foreach
[ code suggestions deleted ]
Here I replaced your -while- loop with another -forval-
and stripped the semi-colons cluttering up the
code like weeds on a lawn. (Seriously, using ;
as a delimiter doesn't mix well with looping.)
[ Additional suggestion of other points deleted ]
Otherwise my wild guess is that your problem
is a side-effect of getting semi-colons
in the wrong place.
All of the foregoing was in respsonse to a request for help
with the following code
> #delimit;
> su group, meanonly
> forvalues i=1/`r(max)' {;
> levelsof bvd_id_number, local(levels)
> foreach l of local levels {;
> local k=1
> while `k'<=`year_count' {;
> replace gamo=gamo + (tax[_`l']-tax[_`k'])*ratio_assets[_`k']
> if bvd_id_number==`l'
> local k=`k'+1
> };
> };
> };
>
To my eye, at least one problem here looks like missing semi colons.
I bet the code would run better if semi-colons were added as below.
#delimit;
su group, meanonly ; /* Semi-colon added here */
forvalues i=1/`r(max)' {;
levelsof bvd_id_number, local(levels) ; /* Semi-colon added here */
foreach l of local levels {;
local k=1 /* Semi-colon added here */;
while `k'<=`year_count' {;
replace gamo=gamo + (tax[_`l']-tax[_`k'])*ratio_assets[_`k'] /* Semi-colon
NOT added here /*
if bvd_id_number==`l' ; /* Semi-colon added here */
local k=`k'+1
};
};
};
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