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Re: st: Re: Encode string in batch way?


From   "Jia Xiangping" <jiajoseph@googlemail.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: Encode string in batch way?
Date   Thu, 21 Sep 2006 18:15:24 +0800

Michael, thank you again. It works well now. I  am now  aware of the
usefulness of "capture", which I did not expect to use.

But, like you mentioned, how to fulfill this work in another way, to
check the variable type within the loop?  I am very curious at it
because that is the way I meant to do.




On 9/20/06, Michael Blasnik <michael.blasnik@verizon.net> wrote:
You can either check the variable type within the loop or else just use the
capture command:

forvalue i=1(1)614 {
 cap encode v`i', gen(vv`i') label(yesno)
 if _rc==0 {
    drop v`i'
    rename vv`i' v`i'
 }
}

Michael Blasnik


----- Original Message -----
From: "Jia Xiangping" <jiajoseph@googlemail.com>
To: "statalist" <statalist@hsphsun2.harvard.edu>
Sent: Wednesday, September 20, 2006 6:31 AM
Subject: st: Encode string in batch way?


> Dear list friends,
>
> I am dealing with a datafile in which a batch of variables are
> mistakenly coded as Y or N in the type of string. You know, string is
> useless to me and I have to encode them. It is easy to encode
> individual variables via following way:
>
> label define yesno 0 "N" 1 "Y"
> encode v1, gen(vv1) label(yesno)
> drop vv1
> rename vv1 v1
>
> However, you know, there are numerous problems in the file like this,
> and I try to encode them a batch way.
> label define yesno 0 "N" 1 "Y"
> forvalue i=1(1)614 {
> encode v`i', gen(vv`i') label(yesno)
> drop v`i'
> rename vv`i' v`i'
> }
>
> Then I was informed
> not possible with numeric variable
> r(107);
> end of do-file
> r(107);

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--
Xiangping JIA
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