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12 Data transformations ​

The PSPP procedures examined in this chapter manipulate data and prepare the active dataset for later analyses. They do not produce output, as a rule.

• AGGREGATESummarize multiple cases into a single case.
• AUTORECODEAutomatic recoding of variables.
• COMPUTEAssigning a variable a calculated value.
• COUNTCounting variables with particular values.
• FLIPExchange variables with cases.
• IFConditionally assigning a calculated value.
• RECODEMapping values from one set to another.
• SORT CASESSort the active dataset.

基于 GNU PSPP 2.0.1 手册与入门教程整理