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st: RE: foreach


From   "White, Justin" <JWhite@yesvirginia.org>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: foreach
Date   Fri, 27 Oct 2006 10:07:37 -0400

This sounds to me that Stata is having a hard time recognizing your
varlist.

Try listing each variable rather than using < p03a01a-p03a01m >.

Also, why generate y?

Why would you not use this:

foreach x in varlist ......... {
	replace `x' = 1 if `x'=="si"
	replace `x' = 0 if `x'=="no"
	}


Justin White

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Ms. Marilyn
Ibarra
Sent: Friday, October 27, 2006 10:02 AM
To: statalist@hsphsun2.harvard.edu
Subject: st: foreach

I have data that is coded as "si" or "no".  I need to change this to
numeric variables.  I tried the following but keep getting an error
message that says, "varlist not found". Can anyone tell me what I am
doing wrong?

Here is the code:

foreach x in varlist p03a01 p03a01a-p03a01m {
	gen y = (`x' == "si")
	replace y = 0 if (`x' =="no")
	drop `x'
	rename y `x'
	}

Thank you in advance,
Marilyn. 
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