[R-SIG-Mac] How to add variables to a vector

[Duncan Murdoch]

On 28/03/2020 4:17 p.m., David wrote:
> If I have a vector created like x <- c(5,1,9,3), how can I add values to
> it later?  That seems simple, but I don't find the answer in either of
> my Dalgaard or Crawley books, or in the help functions.  Thanks.

This question belongs on R-help:  nothing to do with MacOS.  But the 
answer is to use c(), or just assign to a nonexistent location.  For 
example,

x <- c(5,1,9,3)
x <- c(x, 10)
x[10] <- 20

This will result in x printing as

[1]  5  1  9  3 10 NA NA NA NA 20