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Re: st: ends (egen)


From   smerryman@kc.rr.com
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: ends (egen)
Date   Wed, 20 Sep 2006 07:31:13 -0500

Can you provide an example?

In the simple example below, I believe -egen, ends()- is correctly 
separating the head from the tail in the long string (str229).

Scott

clear
set obs 1
local string = c(alpha)
forv i = 1/10 {
	foreach a of local string {
		local st = "`st'`a'"
	}
	local string = c(Wdays)
	if `i' <10 {
		local st = "`st'`a',"
	}	
	if `i' == 9 {
		local string = c(ALPHA)
	}
}
gen foo = "`st'"
egen foo1 = ends(foo), punct(,) head trim
egen foo2 = ends(foo), punct(,) last trim
egen foo3 = ends(foo), punct(,) tail trim
desc
l foo1 foo2


----- Original Message -----
From: Marcello Pagano <pagano@hsph.harvard.edu>
Date: Wednesday, September 20, 2006 6:29 am
Subject: st: ends (egen)
To: statalist@hsphsun2.harvard.edu

> 
> NWatson@lecg.com wrote:
> > I am working with very long string variables which I need to 
> break up 
> > in different ways. To do so I am using the ends (egen) command. 
> After 
> > some puzzling results (i.e. the command was working on some 
> variables 
> > but not on others), I think I discovered that  the ends (egen) 
> command 
> >  only  searches for the specified text over the first 110/112 
> > characters. Is this correct? If so, is there anyway to force the 
> > command to span all characters? If not, I think a warning should 
> be 
> > introduced in the STATA manuals.
> >

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