That's a very handy tool, indeed. Cf.
#delimit;
forval e = 1/5 {; di `e'; };
forval e = 1/2+3 {; di `e'; };
forval e = 1/`=2+3' {; di `e'; };
where the second example bombs for the same (?) reason
as forval e = 1/_N but the third runs fine.
-----Original Message-----
From: Fred Wolfe [mailto:[email protected]]
Sent: Thursday, September 02, 2004 5:00 PM
To: [email protected]
Subject: Re: st: forvalues and _N
This will work:
forval e = 1/`=_N'
Fred Wolfe
At 01:45 PM 9/2/2004 -0700, you wrote:
>I have a problem using a forval loop to assign values to a numeric variable
>(for brevity, assume that -encode- doesn't work here). I want to loop
>through the entire dataset, addressing each value in turn, so
>
>.forval e = 1/_N
>
>would appear to be the appropriate form. I get an "invalid syntax" error
>when I do so.
>
>.di _N
>
>gives me the expected result for this dataset, 2339.
>
>.forval e = 1/2339
>
>works as expected.
>How am I screwing this up?
---------------------------------
Fred Wolfe ([email protected])
National Data Bank for Rheumatic Diseases
Arthritis Research Center Foundation
Wichita, KS USA
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