

   LLaabbeelleedd pplloott

        lplot(x, y, labels, tcex=0.7, ...)

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

          x: vector of x values

          y: vector of y values

     labels: The labels to put at each of the points in the
             scatterplot.  If only one value or symbol is
             given, this value is used at all the points.

       tcex: The size of the labels relative to the text in the
             rest of the plot.

        ...: Any other arguments to pass to the plot function.

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

        This function is a convenient combination of the plot
        and text functions. If either x or y is categorical
        then the points are equally spaced along the relevant
        axis and categories are labeled along the axis. This
        feature is useful for making interaction plots from an
        ANOVA or making dot plots of several data sets side by
        side.

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

        plot, text,

   EExxaammpplleess::

        Plot the latitude verses the minimum average January temperature for
        50 US cites and label the plot with the city names.  Also include some
        axes labels and make the city labels smaller than the default size so
        that they are more readable:

        lplot(climate$lat,climate$jan,climate$city,xlab="Latitude",
        ylab="Jan. Temp.",tcex=.4)

        Plot force measurements from the actuator experiment by the supply
        line pressure. Label the points by the type of actuator:

        lplot(actuator.exp$press,actuator.exp$force,actuator.exp$act,
        xlab="pressure",ylab="force")

