grid.points {grid}R Documentation

Draw Data Symbols

Description

These functions create and draw data symbols.

Usage

grid.points(x = runif(10),
            y = runif(10),
            pch = 1, size = unit(1, "char"),
            default.units = "native", name = NULL,
            gp=gpar(), draw = TRUE, vp = NULL)
pointsGrob(x = runif(10),
            y = runif(10),
            pch = 1, size = unit(1, "char"),
            default.units = "native", name = NULL,
            gp=gpar(), vp = NULL)

Arguments

x A numeric vector or unit object specifying x-values.
y A numeric vector or unit object specifying y-values.
pch A numeric or character vector indicating what sort of plotting symbol to use.
size A unit object specifying the size of the plotting symbols.
default.units A string indicating the default units to use if x or y are only given as numeric vectors.
name A character identifier.
gp An object of class gpar, typically the output from a call to the function gpar. This is basically a list of graphical parameter settings.
draw A logical value indicating whether graphics output should be produced.
vp A Grid viewport object (or NULL).

Details

Both functions create a points grob (a graphical object describing points), but only grid.points draws the points (and then only if draw is TRUE).

Value

A points grob. grid.points returns the value invisibly.

Author(s)

Paul Murrell

See Also

Grid, viewport


[Package grid version 2.1.0 Index]