Dear Rers,
I have a function to barplot() a matrix, eg
myfun <- function(x, ...) { barplot(x , ... )}
(The real function is more complicated, it does things to the matrix first.)
So I can do:
m1 <- matrix(1:20,4)
myfun(m1)
myfun(m1, main="My title")
I'd like to be able to add the number of rows of the matrix passed to
the function to the "..." argument, eg
myfun(m1, main=paste("n=",ns))
where 'ns' would be nrow(m1)
I've tried this but it doesn't work:
myfun <- function(x, ...) {
ns <- nrow(x)
barplot(x , ... ) }
myfun(m1, main=paste("n = ",ns) )
ns is not found
So, basically, how do I assign an object inside a function that I can
then access in the dots when executing the function?
Many thanks
Marianne
--
Marianne Promberger PhD, King's College London
http://promberger.info
R version 2.12.0 (2010-10-15)
Ubuntu 9.04
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