* (Q) I would like to exclude "outliers" from my analysis where I define
outliers as values outside mean +/- 2 times the sd.
* (A) posted by Ray 2001/10/15.
GET FILE='c:\program files\spss\employee data.sav'.
* next command create a new variable named zsal which contains the z-scores of salary.
DESCRIPTIVE salary(zsal) /STATISTICS=MEAN STDDEV MIN MAX.
* Exclude outliers (cases with z-scores outside the (-2,2) range).
SELECT IF RANGE(zsal,-2,2).
DESCRIPTIVE salary zsal /STATISTICS=MIN MAX.
EXECUTE.
.