[R] How to find the non matching vectors among these five, if so how we can find the non matching element of that vectors?

[Richard M. Heiberger]

This should get you started.

Rich


aa <- c(1,2,3)
bb <- c(1,2,3,4)
cc <- c(1,2,3)
dd <- c(1,2,3)
ee <- c(1,4,5)


outer.all.equal <- function(input.list) {
  nn <- names(input.list)
  if (is.null(nn)) stop("input must be a named list.")
  n <- length(input.list)
  result <- vector("list", n*n)
  dim(result) <- c(n, n)
  dimnames(result) <- list(nn, nn)

  for (i in nn)
    for (j in nn)
      result[[i, j]] <- all.equal(input.list[[i]], input.list[[j]])
  result
}

outer.all.equal.TRUE <- function(x) {
  y <- array(vector(length=length(x)), dim(x), dimnames(x))
  y[] <- sapply(result, function(x) length(x)==1 && x == TRUE)
  y
}

input.list <- list(aa=aa, bb=bb, cc=cc, dd=dd, ee=ee)
result <- outer.all.equal(input.list)

result
str(result)
outer.all.equal.TRUE(result)


On 9/6/12, Sri krishna Devarayalu Balanagu
<balanagudevarayulu at gvkbio.com> wrote:
> Hello,
>
> Say all the below five vectors should have same elements in any situation.
> How to find the non matching vectors among these five, if so how we can find
> the non matching elements of those vectors?
> Can anyone help?
>
> a=c(1,2,3)
> b=c(1,2,3,4)
> c=c(1,2,3)
> d=c(1,2,3)
> e=c(1,4,5)
> identical(a,b,c,d,e)
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