?inter
?intersec
?intersection
?setdiff
a <- c(1,2,3,4,5,6,7,8,9)
b <- c(3,10,20,5,6)
intersect(a,b)
b[b %in% intersect(a,b)]
b[!(b %in% intersect(a,b))]
?intersect
setdiff(a,b)
setdiff(b,a)
q()
?range
a=data.frame(V1=rnorm(10),V2=rnorm(10),V3=rnorm(10))
a
lapply(a,range)
sapply(a,range)
ls
?assign
?get
?get
V1=rnorm(10)
get(paste("V","1",sep=""))
q()
help.start('init')
q()
