[R] devide data into decile

Guojun Zhu shmilylemon at yahoo.com
Tue May 9 09:04:49 CEST 2006

I guess this is really basic.  But I do not find an
answer yet.  I have a big data.frame.  I would like to
divede them into 10 deciles accounding to one of its
member.  Then I need a number for each decile with
some computaion within each group.  How to devide it?

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