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Re: st: Re: multiple )))brackets, is there a more efficient way?


From   Ulrich Kohler <kohler@wz-berlin.de>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: Re: multiple )))brackets, is there a more efficient way?
Date   Tue, 25 May 2004 16:19:41 +0200

It might still be a matter of taste, but, for many codings I think  
michael.blasniks approach is very powerfull---at least for documentation. 
Also remember that you can create your dataset within the original do-file, if 
you don't want to split the documentation into different files:

-----------------------mydofile.do
use nation, clear
<commands>
sort nation

// Create Origin-Variable
preserve
input nation origin
 1    3
 2    3
 3    3
 4    3
 5    2
 6    2
 7    2
 8    1
 ...  
 141  10
end
sort nation
save origin, replace
restore

// Merge Origin Variable to nation-data
merge nation using origin

exit
----------------------------------------------


Adrian.P.Mander@gsk.com wrote:
> OR just use a recode or is this missing the point?
>
> gen origin = natio
> recode origin 3=7 8 12 69 139 141=10 14=8 ... etc
>
> cheers
> Ade
>
>
>
>
>                       "Michael Blasnik"
>                       <michael.blasnik@verizon.
>                       net>
>                                                        To:     
> statalist@hsphsun2.harvard.edu Sent by:
>                       owner-statalist@hsphsun2.        cc:
>                       harvard.edu                      Subject: st: Re:
> multiple )))brackets, is there a more efficient way?
>
>
>                       25-May-2004 14:45
>                       Please respond to
>                       statalist@hsphsun2.harvar
>                       d.edu
>
>
>
>
>
> The suggestion to use inlist may be a step in the right direction, but if
> you have a coding for every county in the world  or any list with more than
> a few dozen codings, I would think that you should create a dataset with
> the
> codings (often this coding information is available in a way that makes the
> dataset creation fairly straightforward) and then use -merge- to bring them
> in.
>
> sort nation
> merge nation using nationcodes
>
> You can always list the nationcode file to document what the mapping is.
>
> Michael Blasnik
> michael.blasnik@verizon.net
>
> ----- Original Message -----
> From: "Annelies Vos" <a.vos@erasmusmc.nl>
> To: <statalist@hsphsun2.harvard.edu>
> Sent: Tuesday, May 25, 2004 2:35 AM
> Subject: st: multiple )))brackets, is there a more efficient way?
>
> > Dear all,
> > in the FAQs I found the following very useful recommendation:
> > instead of:
> >            . generate byte a = 1 if y <= 20
> >            . replace a = 2 if y > 20 &  y <= 30
> >            . replace a = 3 if y > 30 & y <= 40
> >            . replace a = 4 if y > 40 & y <.
> >
> > do the following:
> >
> >            . #delim ;
> >            . generate byte a =
> >              cond(y<=20, 1,
> >              cond(y<=30, 2,
> >              cond(y<=40, 3,
> >              cond(y<., 4,
> >                . ))));
> >
> > However, the variable I want to use it for (nationality) has many
> > values (every country in the world), which should be recoded into
> > countrygroups. I don't really like the idea of having to count the
> > number of "opening brackets": "(" , to know with how many "closing
> > brackets": ")" I should end. Is there any easier solution for this?
> >
> > to explain a piece of my syntax:
> > > #delim;
> > > generate byte origin =
> > > cond(natio==3, 7,
> > > cond(natio==8, 10,
> > > cond(natio==12, 10,
> > > cond(natio==14, 8,
> > > cond(natio==28, -9,
> > > cond(natio==54, 6,
> > > cond(natio==69, 10,
> > > cond(natio==82, 8,
> > > cond(natio==139, 10,
> > > cond(natio==141, 10,
> >
> > ...etcetera
> >
> > ...which I would like to end on another way than:
> > > . ))))))))))
> >
> > Thanks for any suggestions,
> >
> > Annelies Vos
>
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-- 
kohler@wz-berlin.de
+49 (030) 25491-361


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