Date:         Tue, 29 Oct 2002 08:00:33 -0500
Reply-To:     Richard Ristow <wrristow@mindspring.com>
Sender:       "SPSSX(r) Discussion" <SPSSX-L@LISTSERV.UGA.EDU>
From:         Richard Ristow <wrristow@mindspring.com>
Subject:      Re: Help!!! Preparing files for bootsrap
Comments: To: Rita Clivio <Clivio@databank.it>
In-Reply-To:  <47A009184448404DA86E627013150EE2408BCD@dbkma1.databank.net >
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 12:57 PM 10/28/2002 +0100, Rita Clivio wrote:

>I need to prepare one file for every different sub-sample (defined by
>the combinations of value of 4 variables:type1, type2, type3, type4
>--> more than 800 files/combinations).

Would it work, instead of doing this, to use the SPLIT FILES command to
perform separate analyses on each of the groups, while still using one file?

Syntax is

SORT CASES BY type1 type2 type3 type4.   /* Unless file is already sorted */
SPLIT FILE BY type1 type2 type3 type4.
<analysis commands>

If this does what you want, it simplifies the analysis, too, since you
don't need a loop to invoke the same analysis for each of the 800 files.