RE: st: rearranging multiple date variables

[Romana Pylypchuk <r.pylypchuk@auckland.ac.nz>]

Thanks Nick

Romana  

-----Original Message-----
From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nick Cox
Sent: Tuesday, 31 January 2012 2:26 p.m.
To: statalist@hsphsun2.harvard.edu
Subject: Re: st: rearranging multiple date variables

-reshape long- and -drop- and -reshape wide- again.

Nick

On Mon, Jan 30, 2012 at 10:44 PM, Romana Pylypchuk
<r.pylypchuk@auckland.ac.nz> wrote:

> I have a dataset of hospital admissions (multiple per patient) which is in a wide format.
> The variables are:
> unique patient's identifier,  date of hospital admission 1, date of hospital discharge 1, date of hospital admission 2, date of hosp. discharge 2 , date of hosp. admission 3, date of hosp discharge. 3 and so on.
> I would need to combine into one each two visits that have discharge and subsequent admission on the same date.  Ie, if the date of hospital discharge 1 and hospital admission 2 is the same than date of hospital discharge 2 becomes date of hospital discharge 1, while all subsequent dates shift to the left (date of admission 3 becomes date of admission 2 and date of discharge 3 becomes  date of discharge 2).
> Is there a way to do this efficiently?

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