

   PPlloott aa HHiissttooggrraamm

        truehist(data, nbins = nclass.scott(data), h, x0 = -h/1000,
        breaks, prob = T, xlim = range(breaks), ymax = max(est), col,
        xlab = deparse(substitute(data)), bty = "n", ...)

   AArrgguummeennttss::

       data: numeric vector of  data  for  histogram.   Missing
             values (`NA's) are allowed and omitted.

      nbins: The suggested number of bins.

          h: The bin width (takes precedence over `nbins').

         x0: Shift for the bins - the breaks are at `x0 + h *
             (...{}, -1, 0, 1, ...{})'

     breaks: The set of breakpoints to be used. (Usually omit-
             ted, takes precedence over `h' and `nbins').

       prob: If true (the default) plot a true histogram.  The
             vertical axis has a relative frequency density
             scale, so the product of the dimensions of any
             panel gives the relative frequency.  Hence the
             total area under the histogram is 1 and it is
             directly comparable with most other estimates of
             the probability density function.  If false plot
             the counts in the bins.

       xlim: The limits for the x-axis.

       ymax: The upper limit for the y-axis.

        col: The colour number for the bar fill.

       xlab: label for the plot x-axis. By default, this will
             be the name of `data'.

        bty: The box type for the plot - defaults to none.

        ...: additional arguments to `polygon'.

   DDeessccrriippttiioonn::

        Creates a histogram on the current graphics device.

   DDeettaaiillss::

        This plots a true histogram, a density estimate of
        total area 1.  If `breaks' is specified, those break-
        points are used. Otherwise if `h' is specified, a regu-
        lar grid of bins is used with width `h'.  If neither
        `breaks' nor `h' is specified, `nbins' is used to
        select a suitable `h'.

   VVaalluuee::

        None.

   SSiiddee EEffffeeccttss::

        A histogram is plotted on the current device.

   SSeeee AAllssoo::

        `histplot', `hist', `histogram'

