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Re: st: RE: Foreach loop for subsequent variables


From   daniel klein <klein.daniel.81@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: RE: Foreach loop for subsequent variables
Date   Tue, 1 Nov 2011 18:38:02 +0100

Nick,

thanks for sharing this clever usage of -tokenize-. This might save
some typing in similar situations.

Here is another way, that might be faster, given the repeated useage
of -preserve- and -restore- in the codes given by Matt and Nick.

unab varlist : *
tokenize `varlist'

forv j = 1(2)897 {
	use ``j'' ``= `j' + 1'' using <filename>
	save `j'2
}

Best
Daniel

--
Matthew's code should work. This is an alternative:

unab varlist : *
tokenize `varlist'
forvalues i = 1(2)897 {
	preserve
	local j = `i' + 1
	keep ``i'' ``j''
	save `i'2
	restore
}

But there is no important reason to use this code rather than Matthew's.
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