[R] Compare three or more values?

[Beale, Holly (NIH/NHGRI) [F]]

Is there a less cryptic way to compare three or more values?

allTheSame<-c("red","red","red","red")
notAllTheSame<-c(132,132,132,999)

all.identical <- function(vectorToTest){
    cIdentical=sum(vectorToTest %in% vectorToTest[1])
    return(cIdentical==length(vectorToTest))
    }

all.identical(allTheSame)
all.identical(notAllTheSame)

Thanks in advance,
Holly

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