On Tue, 17 Jul 2007, Nils Rüfenacht wrote:
Dear all!
I do definetley have some difficulties. Here is my code:
setMethod("write",
+ signature(object = "KMatrix", path = "character"),
+ function(object,path){
+ write.table([EMAIL PROTECTED],path,row.names=FALSE, sep = "\t")
+ }
+ )
error in match.call(fun, fcall) : unused argument(s) (object =
"KMatrix", path = "character")
"KMatrix" is an extension of some data.frame object, i.e. it's a
data.frame ([EMAIL PROTECTED]) with some additional slots (e.g. [EMAIL
PROTECTED])
What's wrong with my setMethod?
Take a look at the existing function 'write':
write
function (x, file = "data", ncolumns = if (is.character(x)) 1 else 5,
append = FALSE, sep = " ")
cat(x, file = file, sep = c(rep.int(sep, ncolumns - 1), "\n"),
append = append)
You are trying to set a method for it with completely different arguments.
I am not sure what you are trying to achieve by this: it would look more
natural to set a write.table() method since no one is going to call
write() on the data frames you are wishing to 'extend'.
--
Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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