#' Check for being THE vector
#'
#' Check if object is what ordinary R user considers as a vector,
#' i.e. unidimensional non-list collection of elements of the same kind.
#'
#' @param x object to be tested.
#'
#' @export
is.simple.vector <- function(x) {
is.atomic(x) && !is.recursive(x) && !is.array(x)
}
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