Dirk,

A massive failure to understand how SAS works and when SAS actual does stuff. Either that or the person is a total idiot an should be banned from ever touching a computer again for as long as they live. If they do they should be strapped to a pole and flogged publically till they decide to never again attempt programming.

Toby Dunn

From: Dirk Nachbar <Dirk.Nachbar@DWP.GSI.GOV.UK> Reply-To: Dirk Nachbar <Dirk.Nachbar@DWP.GSI.GOV.UK> To: SAS-L@LISTSERV.UGA.EDU Subject: double data step Date: Wed, 16 Nov 2005 16:53:37 Z

why would someone write 'data x' twice in the following step.

data x; data x; set y; run;

that one also writes

data x; proc sort data=y out=x; by id; run;

why?

Dirk Nachbar Assistant Economist Pensim2 Department for Work and Pensions Level 4, The Adelphi 1-11 John Adam St WC2N 6HT London 020 796 28531 ********************************************************************** This document is strictly confidential and is intended only for use by the addressee. If you are not the intended recipient, any disclosure, copying, distribution or other action taken in reliance of the information contained in this e-mail is strictly prohibited. Any views expressed by the sender of this message are not necessarily those of the Department for Work and Pensions. If you have received this transmission in error, please use the reply function to tell us and then permanently delete what you have received. Please note: Incoming and outgoing e-mail messages are routinely monitored for compliance with our policy on the use of electronic communications. **********************************************************************

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