functions, `...' and .Rprofile
mmiller3 at iupui.edu (Michael A. Miller) writes:
I'm experiencing some confusion with the ellipsis argument
(...).
In my .Rprofile, I have the following functions:
stderr <- function(x, ...) {
sqrt( var(x, ...) / length(x) )
}
se <- stderr
...
If I use stderr instead, I don't get that error:
> tapply( Diameter, factor(Region), stderr, na.rm=TRUE )
I II III IV V 0.005167949 0.004405095 0.006588870 0.006633189 0.001857812
I know that's not what you were asking, but you're not getting the correct result either... You'd need to divide by sum(!is.na(x)) rather than length(x).
O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk) FAX: (+45) 35327907 -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._