R/is.wholenumber.R

In DistributionUtils: Distribution Utilities

### Test for whole number, with tolerance for representation
### From post by Tony Plate <tplate_at_acm.org>
is.wholenumber <- function(x, tolerance = .Machine$double.eps^0.5) {
  if (!is.numeric(x)) {
    return(FALSE)
  } else {
    return(isTRUE(all(abs(x - round(x)) < tolerance)))
  }
}