Modifying Data Values

The data you start with may not always be organized in the most useful manner for your analysis or reporting needs. For example, you may want to:

• Create a categorical variable from a scale variable.
• Combine several response categories into a single category.
• Create a new variable that is the computed difference between two existing variables.
• Calculate the length of time between two dates.

This chapter uses the data file demo.sav. See the topic Sample Files for more information.

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