Holly,
try
> length(unique(x)) == 1
where x is your vector of interest. But think about
how you want NA values to be treated, and also think about
R FAQ 7.31 if dealing with floating point numbers.
--Erik
Beale, Holly (NIH/NHGRI) [F] wrote:
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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