[R] Compare three or more values?

[Erik Iverson]

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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