Question

Using R, I have a vector such as

a <- c(0.1,0.6,23,Inf,NaN)

I would like to convert it to something like

c("Finite","Finite","Finite","Inf","NaN")

with as little pain as possible. How is this done?

Thanks!
Uri

Answer 1

Another method can be something like this (similarly to question Recoding Numeric Vector):

type <- rep("Finite", length(a))
type[is.nan(a)] <- "NaN"
type[is.infinite(a)] <- "Infinite"