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st: RE: converting continuous var to ordinal with equal obs numbers per group


From   "Martin Weiss" <martin.weiss1@gmx.de>
To   <statalist@hsphsun2.harvard.edu>
Subject   st: RE: converting continuous var to ordinal with equal obs numbers per group
Date   Sat, 28 Nov 2009 12:45:22 +0100

<>

" ...with equal number of observations per group"


With integer cutpoints, the equal frequency part of your request is hard to
comply with:


*******
clear*
set obs 1500

local a 15
local b 86
gen age=`a'+int((`b'-`a'+1)*runiform())

egen catage = cut(age), /* 
 */  group(15) label

table catage, /* 
 */  c(freq min age max age)
*******


HTH
Martin

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu
[mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nikolaos Pandis
Sent: Samstag, 28. November 2009 11:48
To: statalist@hsphsun2.harvard.edu
Subject: st: converting continuous var to ordinal with equal obs numbers per
group

Hi to all,

I  a continuous variable (age) with a range from 15-86 and around 1500
observations.
How could I convert it into an ordinal variable with equal number of
observations per group, given that I would like to have around 15 groups.

Many thanks,

Nikolaos


      
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