> x <- 10.4678 > print(x,digits=3) [1] 10.5
cat(c("hello", "world", "\n")) #hello world
> a=c(1,2,NA,4,NA,6,7) > a [1] 1 2 NA 4 NA 6 7 > print(a,na.print="-999") [1] 1 2 -999 4 -999 6 7