Instead of subset=sub[-i], try data=dftc[-i,] (I've not tested this since I don't have the data objects you used.)
hope this helps,
Tony Plate
At Thursday 04:38 PM 6/10/2004, you wrote:
Hi, I have some code that looks like:
dftc <- df[sets$tcset,] pt <- numeric(nrow(dftc)) sub <- 1:nrow(dftc) for (i in 1:nrow(dftc)) { n <- nnet( fmla, data=dftc, weights=wts, subset=sub[-i], size=4, decay=0.01) pt[i] <- predict( n, dftc[ i, ], type='class' ) }
However running this give me the error:
Error in eval(expr, envir, enclos) : Object "i" not found
I have noted this problem in some other instances. For example if I define a function
f <- function( dat, sets ) { # use sets }
I sometimes get an error similar to that above.
Does anybody know why this would happen?
(R 1.9.0 on Fedora Core 2) ------------------------------------------------------------------- Rajarshi Guha <[EMAIL PROTECTED]> <http://jijo.cjb.net> GPG Fingerprint: 0CCA 8EE2 2EEB 25E2 AB04 06F7 1BB9 E634 9B87 56EE ------------------------------------------------------------------- All laws are simulations of reality. -- John C. Lilly
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