Element-wise mean in R

Question

In R, I have two vectors:

a <- c(1, 2, 3, 4)
b <- c(NA, 6, 7, 8)

How do I find the element-wise mean of the two vectors, removing NA,

Answer 1

I'm not exactly sure what you are asking for, but does

apply(rbind(a,b),2,mean,na.rm = TRUE)

do what you want?