Is there a function in R that does what atoi() does in C?

Question

Is there a function in R that does what atoi() does in C?

More precisely that converts a character to an integer.

e.g. A = 65, P = 80 and so on ?

Answer 1

charToRaw will give you the hex value. You can pass that to as.numeric to get the decimal equivalent

> as.numeric(charToRaw("A"))
[1] 65
> as.numeric(charToRaw("P"))
[1] 80