[R] question about a small for loop

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

Re: [R] question about a small for loop

Christopher W. Ryan wrote: 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)

Re: [R] question about a small for loop

May be this helps: jaw-data.frame(vara=1:20,age=runif(20)) for (i in 2:6) { jaw[paste(agepow,i, sep=)] - jaw[age]^i } jaw-round(jaw,2) # It is just to help the check task Cheers, Miltinho Astronauta Brazil On 7/14/08, Christopher W. Ryan [EMAIL PROTECTED] wrote: R 2.5.1 on

Re: [R] question about a small for loop

Thank you to all for your ideas. They all solved my problem nicely. And I learned about paste() too! --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