On Wed, 23-Jun-2004 at 07:29PM +0100, Dan Bolser wrote: |> |> Hi, |> |> I have data like this.... |> |> print(x) |> |> ID VAL1 VAL2 |> 1 2 6 |> 2 4 9 |> 3 45 12 |> 4 99 44 |> |> What I would like is data like this... |> |> ID VAL1 VAL2 |> 1 2 6 |> 2 4 9 |> 3 12 45 |> 4 44 99 |> |> |> So that my analysis of the ratio VAL2/VAL1 is somehow uniform.
By "uniform", I'm guessing you want them to be >= 1 If z is a vector of VAL2/VAL1 values, you can make them all >= 1 this way. z[z < 1] <- z[z < 1]^-1 Depending on just how you want to use them, there could be better ways but I've done enough guessing for now. HTH -- Patrick Connolly HortResearch Mt Albert Auckland New Zealand Ph: +64-9 815 4200 x 7188 ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~ I have the world`s largest collection of seashells. I keep it on all the beaches of the world ... Perhaps you`ve seen it. ---Steven Wright ~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~.~ ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html