write an for loop function in R

Question

I would like to write a simple function that loops through a vector and adds one to each value. How should I go about it?

x<-1:10
x_plus_one<-function(i){
  for (i in x)
    i+1}

This function does not return anything.

What is expected should be sthg like below:

> x1<-x+1
> x1
 [1]  2  3  4  5  6  7  8  9 10 11 

Answer 1

thanks @Allan Cameron

func <- function(x) 
{ for(i in seq_along(x)) 
    x[i] <- x[i] + 1; 
return(x)
}
x<-(5:10)
> func(x)
[1]  6  7  8  9 10 11