[R] question about a small "for" loop

[Christopher W. Ryan]

R 2.5.1 on WinXP

I'm trying to create new variables in a dataframe called jaw, as powers
of jaw$age up to the sixth power, and name them

jaw$age.(--the digit corresponding to the power--)

Obviously none of these work (silly for me to try, I suppose):

for (i in 2:6) {
  jaw$age.'i' <- jaw$age^i
  }

for (i in 2:6) {
  jaw$age.i <- jaw$age^i
  }

for (i in 2:6) {
  jaw$age."i" <- jaw$age^i
  }

What is the proper syntax to create and name these variables all at once?

Thanks.

--Chris
-- 
Christopher W. Ryan, MD
SUNY Upstate Medical University Clinical Campus at Binghamton
40 Arch Street, Johnson City, NY  13790
cryanatbinghamtondotedu
PGP public keys available at http://home.stny.rr.com/ryancw/

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