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Re: st: how do you re-categorize a string variable?


From   "Darren White" <darrenm.white@health.qld.gov.au>
To   "statalist" <statalist@hsphsun2.harvard.edu>
Subject   Re: st: how do you re-categorize a string variable?
Date   Wed, 24 Apr 2013 15:07:12 +1000

Hi Gwinyai

You may need a == in your if statement

eg: replace hypertension_status = "hypertensive" if hypertension ==
"mild"  etc etc

or maybe you have a numeric variable with text labels if so

use command:
tab hypertension, nolabel

to view the numeric codes

cheers

Darren


>>> Gwinyai Masukume <parturitions@gmail.com> 4/24/2013 2:56 pm >>>
Dear Stata listers,

I have a dataset with the string variable hypertension. Observations
of the variable hypertension can be mild, moderate, and severe or no
hypt (no hypertension):

hypertension
.
mild
.
.
moderate
.
severe
no hypt
severe
.
.
mild
mild
.
no hypt
.

I would like to create a new variable, hypertension_status, which
‘distingushes’ if an individual is hypertensive or not.

generate hypertension_status = hypertension
replace hypertension_status = "hypertensive" if hypertension = "mild"|
hypertension = “moderate” | hypertension = “severe”

I am getting:
type mismatch
r(109);

How can I formulate the command?

Kind regards,
Gwinyai

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