User Guide

For more information about SPSS
®
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A portion of th
e SPSS software contains zlib technology. Copyright © 1995–2002 by Jean-loup Gailly and Mark Adler. The zlib
software is provided “as is,” without express or implied warranty.
A portion of the SPSS software contains Sun Java Runtime libraries. Copyright © 2003 by Sun Microsystems, Inc. All rights
reserved. The
Sun Java Runtime libraries include code licensed from RSA Security, Inc. Some portions of the libraries are
licensed from IBM and are available at http://oss.software.ibm.com/icu4j/.
SPSS® Base 13.0 User’s Guide
Copyright © 20
04 by SPSS Inc.
All rights reserved.
Printed in the United States of America.
No part of this p
ublication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means,
electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher.
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