Transcription of Transforming and Restructuring Data - Stat …
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Transforming and Restructuring Data - Stat …
Transforming and Restructuring data Jamie DeCoster Department of Psychology University of Alabama 348 Gordon Palmer Hall Box 870348. Tuscaloosa, AL 35487-0348. Phone: (205) 348-4431. Fax: (205) 348-8648. May 14, 2001. These notes were prepared with the support of a grant from the Dutch Science Foundation. I would like to thank Heather Claypool and Lynda Mae for comments made on earlier versions of these notes. If you wish to cite the contents of this document, the APA reference for them would be DeCoster, J. (2001). Transforming and Restructuring data . Retrieved <month, day, and year you downloaded this le> from For future versions of these notes or help with data analysis visit ALL RIGHTS TO THIS DOCUMENT ARE RESERVED. Contents 1 Introduction 1. 2 Transformations: Calculating New Values from Existing Variables 6. 3 Normalizing data 10. 4 Working with Conditionals (if statements) 15. 5 Working with Arrays and Loops 20.
Chapter 1 Introduction 1.1 Overview • Often times the initial form of your data is not the way you want it for analysis. The reasons for this could be many. For example, A researcher might choose to have data entered in a format that is easy for typists (to reduce data-entry errors) but which differs from the form needed for analysis.
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