How to Use SPSS:Dealing with Outliers

Techniques fordealing with outliers that may be present in a data distribution.
References:
Duan, B. (1997). The robustness of trimming and Winsorization when the population distribution is skewed. Unpublished dissertation, Tulane University, New Orleans.
Hawkins, D. M. (1980). Identification of outliers. London: Chapman & Hall.

[@Muuip]

Many thanks!

[@dr.mohammedhassansalemmakh5758]

Can Ii trimming or winsorizing automatically in SPSS or manual???
Thanks

[@tacappaert]

+Mohammed Hassan Salem Makhlouf You can somewhat automate the process by using the Select Cases function to remove unwanted data points from an analysis or using the Transform function to change values of cases to the value you want to use (Winsorizing).

[@dr.mohammedhassansalemmakh5758]

+TheRMUoHP Biostatistics Resource Channel Thank you
Is there a reference that the winsorizing 5% will not affect the results?