Date:         Wed, 24 Sep 2003 08:16:13 -0500
Reply-To:     "Marks, Jim" <Jim.Marks@lodgenet.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         "Marks, Jim" <Jim.Marks@lodgenet.com>
Subject:      Re: should be real simple... counting unique cases
Content-Type: text/plain; charset="us-ascii"

Nico:

There are many ways to skin this cat. I like AUTORECODE:

DATA LIST FREE /vara (A1).
BEGIN DATA
1 1 1 1 2 2 3 3 4 4 5 5 5 6 6 6
7 7 7 7 7 8 9 9
END DATA.

AUTORECODE vara /INTO varnbr.
DESCRIPTIVES varnbr /STAT=max.


The maximum value of varnbr is the number of unique values.

For numeric variables, you can use

RANK varnbr /RANK INTO varcnt /TIES=CONDENSE.

Cheers

Jim Marks
Senior Market Analyst
LodgeNet Entertainment Corporation


-----Original Message-----
From: Nico Peruzzi, Ph.D. [mailto:nperuzzi@yahoo.com]
Sent: Tuesday, September 23, 2003 5:28 PM
To: SPSSX-L@LISTSERV.UGA.EDU
Subject: should be real simple... counting unique cases


SPSSers,

I know I'm missing something real simple here, but how does
one count the number of unique cases in a variable as
follows:

String variable A:
1
1
1
2
2
2
3
3
4
4
5
6
7
7
7
7
8
8
9
9

I want to know how many unique numbers are in this
variable.

Thanks in advance, Nico

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