Transforming Variables; Selecting and Sorting Cases

  • Neil Frude

Abstract

Once a file containing the raw data has been established, the user may wish to transform the data in certain ways. Thus the coding system originally used for a variable may be inappropriate for certain types of analysis. For example, if a variable age has been coded in terms of years it will not be possible to directly compare a young group with a middle-aged or old group. With a RECODE command, however, the existing data can be re-classified so that age (in years) is recoded into, say, ‘young’ — up to 25 years; ‘middle’ — 26 to 50 years; and ‘old’ — over 50 years. Such a recoding would produce three age groups rather the original groupings (one for each separate age).

Keywords

Logical Expression Active File Gender Attitude Original File Neuroticism Score 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Neil Frude 1987

Authors and Affiliations

  • Neil Frude

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