[R] scoping rules
deepayan at stat.wisc.edu
Mon Mar 17 06:23:29 CET 2003
On Sunday 16 March 2003 09:16 pm, Robin Hankin wrote:
> I recently found a bug that was isomorphic to the following:
> ll1 <- 2
> increment <- function(x)
> l11 <- 1
You are not really using this variable (l11, not ll1) anywhere. Is that a
typo? What exactly do you want to happen ?
> return(x+ll1) #bug here
> Of course, R is obeying the scoping rules just fine, but I'm evidently
> not setting the do.what.I.mean.not.what.I.say variable correctly.
> Now, how do I avoid making this type of error? ... and what is the
> best tool for tracking it down?
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