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
>
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