[R] Weird function call problem
Bela Bauer
bela_b at gmx.net
Wed May 25 16:22:47 CEST 2005
Hi,
I'm encountering a very odd problem with calls to anova.mlm() from within a
function.
Consider the following code (data.n is a matrix of numeric values):
mlmfit <- lm(data.n ~ 1)
mlmfit0 <- lm(data.n ~ 0)
print(mlmfit)
anova(mlmfit,mlmfit0,test="Spherical")
If I run it just like this from the console, it works just fine. If,
however, I call it from within a function, e.g. using
fct <- function(data.k) {
# same code with data.n replaced by data.k
}
fct(data.n)
It gives me
> fct(data.n)
Call:
lm(formula = data.k ~ 1)
Coefficients:
...
Error in anova.mlmlist(object = mlmfit, mlmfit0, test = "Spherical") :
Object "mlmfit" not found
What causes mlmfit to "disappear" between two lines? I haven't got the
slightest clue where to look for an answer...
Thank you very much for your help.
Bela Bauer
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