Hi, I have a function, callGam, that fits a gam model to a subset of a dataframe. The argument to callGam is a formula, the subset is determined inside the function itself. My naïve approach generates and error, see below. I guess this is because 'idx' is loocked up in the environment of 'formula', but I am too ignorant about environments to be able to tell for sure. Could someone please suggest a way around?
Thanks, Vadim > library("mgcv") > > callGam <- function(formula) { + idx <- seq(10) + gam(formula, data=data.frame(x=rnorm(100), y=rnorm(100)), subset=idx) + } > > gam.fit <- callGam(y ~ x) Error in eval(expr, envir, enclos) : Object "idx" not found > ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html