| To: | "刘志刚" <liuzhigang626@gmail.com> |
|---|---|
| Subject: | Re: Winsorization - how to do |
| From: | Tim Hesterberg <TimHesterberg@gmail.com> |
| Date: | Thu, 18 Sep 2008 18:34:59 -0500 (CDT) |
| Cc: | s-news@wubios.wustl.edu |
| In-reply-to: | <26c73e350809172027j3bb5f760s214da5e82de8e302@mail.gmail.com> (liuzhigang626@gmail.com) |
| References: | <26c73e350809172027j3bb5f760s214da5e82de8e302@mail.gmail.com> |
| Reply-to: | TimHesterberg@gmail.com (Tim Hesterberg) |
Instead of winsorization, I suggest using Huber's robust estimate.
See:
help(location.m)
Tim Hesterberg
>Dear all,
> I am dealing with a data set with many outliers value. And it is said
>that a technique named winsorization or winsorising can
>reduce the influence of those extreme values. Did anyone use this skill
>before? And how to do it in S-plus? Thank you.
>
>Zhigang Liu
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