

   RReellaattiioonnaall OOppeerraattoorrss

        x < y
        x > y
        x <= y
        x >= y
        x == y
        x != y

   VVaalluuee::

        These binary operators allow the comparison of values
        in vectors.  They return a vector of logicals indicat-
        ing the result of the element by element comparison.
        The elements of shorter vectors are recycled as neces-
        sary.

        Objects such as arrays or time-series can be compared
        this way provided they are conformable.

   EExxaammpplleess::

        x <- rnorm(20)
        x < 1
        x[x > 0]

