[Rd] works in R-1.1.1 but not in R-development; why?

[Ramon Diaz-Uriarte]

Thanks a lot to Thomas Lumley, Peter Dalgaard, and Luke Tierney for their
answers. 


I think I understand why the function failed, and the workaorunds. However,
would it be appropriate if a call such as:


my.function <- function(formula, data){
# other stuff
    lm(formula = formula, data = data, weights = data$x2)
} 

my.function(formula, datai)


where to return an error, instead of simply ignoring the weights=data$x2
argument? (especially since such a thing used to work and might be used in
other code)

Ramon
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