Statalist


[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

Re: st: tokenize and missing


From   Maarten buis <[email protected]>
To   [email protected]
Subject   Re: st: tokenize and missing
Date   Mon, 28 Jan 2008 08:30:43 +0000 (GMT)

--- Ronnie Babigumira <[email protected]> wrote:
> There is an error in
> 
> local varlist : subinstr varlist " " ", ", all. I am still trying to
> figure it out

yes there is, it should have been:
local varlist : subinstr local varlist " " ", ", all
 
> One last thing (a typical case of "Now you tell us"), what I would
> eventually like to have something like
> 
> list id [upto 5 members of r(varlist)] if mi([upto 5 members of
> r(varlist)])

Ok, what about this:
*-------------------- begin example ----------------------
sysuse nlsw88, clear
nmissing
local varlist "`r(varlist)'"
di "`varlist'"
local k : word count `varlist'
tokenize `varlist'
forvalues i = 1/`k' {
	if mod(`i',4) == 1 {
		local varl = ""
	}
	local varl "`varl' ``i''"
	if mod(`i',4) == 0 | `i' == `k' {
		local varl : list retokenize varl
		local cvarl : subinstr local varl " " ", ", all
		list idcode `varl' if missing(`cvarl'), clean
	}
}
*------------------ end example --------------------------------
(For more on how to use examples I sent to the Statalist, see
http://home.fsw.vu.nl/m.buis/stata/exampleFAQ.html )

Hope this helps,
Maarten

-----------------------------------------
Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

http://home.fsw.vu.nl/m.buis/
-----------------------------------------


      __________________________________________________________
Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com

*
*   For searches and help try:
*   http://www.stata.com/support/faqs/res/findit.html
*   http://www.stata.com/support/statalist/faq
*   http://www.ats.ucla.edu/stat/stata/



© Copyright 1996–2024 StataCorp LLC   |   Terms of use   |   Privacy   |   Contact us   |   What's new   |   Site index