Yesterday I had a problem with c-style "+=" functions. One suggestion was to define
R> "plus<-" <- function(x,value){x+value}
Then
R> a <- matrix(1:9,3,3) R> plus(a[a%%2==1]) <- 1000
works as desired.
QUESTION: why does this behave differently:
R> "plus<-" <- function(x,y){x+y} R> a <- matrix(1:9,3,3)
R> plus(a[a%%2==1]) <- 1000
Error in "plus<-"(`*tmp*`, value = 1000) :
unused argument(s) (value ...)
R>The only change seems to be changing the second argument from "value" to "y". Why does this affect anything? Where do I look for documentation on things like "plus<-" ?
-- Robin Hankin Uncertainty Analyst Southampton Oceanography Centre SO14 3ZH tel +44(0)23-8059-7743 [EMAIL PROTECTED] (edit in obvious way; spam precaution)
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