Does the ternary operator exist in R?

Question

As the question asks, is there a control sequence in R similar to C\'s ternary operator? If so, how do you use it? Thanks!

Answer 1

Your link points to an if statement.

> x <- 1
> if(x < 2) print("Less than") else print("Greater than")
[1] "Less than"

If your input variable is a vector, then ifelse might be more suitable:

> x <- 1:3
> ifelse(x<=2, "Less than or equal", "Greater than")
[1] "Less than or equal" "Less than or equal" "Greater than"   

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To access the help page for if, you need to embed the if in backticks:

?`if`

The help page for ifelse is at:

`?ifelse`