Date:         Wed, 13 Oct 2004 15:20:00 +0200
Reply-To:     Avikam Nuriel <mshope@CC.HUJI.AC.IL>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         Avikam Nuriel <mshope@CC.HUJI.AC.IL>
Organization: Israel Inter-University Computation Center
Subject:      Re: Parsing the HLQ of a dataset
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed

Hi,
I want to create new data :

data a;
proc sort;
by x y;
data a;set;
file 'name';
put x y z;

but I want to ID number that wiil change any time x,y change.

ex:
cards;
x y z
1 1 4
1 1 0
1 2 3.4
2 1 3.9
2 2 5.1
2 2 4.8

the result will be

id x y z
1  1 1 4
2  1 1 0
1  1 2 3.4
1  2 1 3.9
1  2 2 5.1
2  2 2 4.8

regards

Avikam Nuriel
The Hebrew University
of Jerusalem
Israel