

   CCrroossss TTaabbuullaattiioonn

        table(..., exclude = c(NA, NaN))

   AArrgguummeennttss::

        ...: objects which can be interpreted as factors
             (including character strings), or a list (or data
             frame) whose components can be so interpreted

    exclude: values to use in the exclude argument of `factor'
             when interpreting non-factor objects

   DDeessccrriippttiioonn::

        `table' uses the cross-classifying factors to build a
        contingency table of the counts at each combination of
        factor levels.

   EExxaammpplleess::

        ## Simple frequency distribution
        table(rpois(100,5))
        data(warpbreaks)
        attach(warpbreaks)
        ## Check the design:
        table(wool, tension)
        data(state)
        table(state.division, state.region)

        data(airquality)
        attach(airquality)
        # simple two-way contingency table
        table(cut(Temp, quantile(Temp)), Month)

