Chi-square p value matrix in r

Question

Is there any way to find the chi-square p-value matrix in \'R\' (a matrix with the p-values between the attributes)?

As an example, consider the the iris

Answer 1

If that is what you want considering only one of those columns is a categorical variable, Try this:

chisqmatrix <- function(x) {
  names = colnames(x);  num = length(names)
  m = matrix(nrow=num,ncol=num,dimnames=list(names,names))
  for (i in 1:(num-1)) {
    for (j in (i+1):num) {
      m[i,j] = chisq.test(x[,i],x[,j],)$p.value
    }
  }
  return (m)
}
mat = chisqmatrix(iris)