grid.points
Draw Data Symbols
These functions create and draw data symbols.
- Keywords
- dplot
Usage
grid.points(x = stats::runif(10),
y = stats::runif(10),
pch = 1, size = unit(1, "char"),
default.units = "native", name = NULL,
gp = gpar(), draw = TRUE, vp = NULL)
pointsGrob(x = stats::runif(10),
y = stats::runif(10),
pch = 1, size = unit(1, "char"),
default.units = "native", name = NULL,
gp = gpar(), vp = NULL)
Arguments
- x
numeric vector or unit object specifying x-values.
- y
numeric vector or unit object specifying y-values.
- pch
numeric or character vector indicating what sort of plotting symbol to use. See
points
for the interpretation of these values, and notefill
below.- size
unit object specifying the size of the plotting symbols.
- default.units
string indicating the default units to use if
x
ory
are only given as numeric vectors.- name
character identifier.
- gp
an R object of class
gpar
, typically the output from a call to the functiongpar
. This is basically a list of graphical parameter settings; note thatfill
(and notbg
as in package graphicspoints
) is used to “fill”, i.e., color the background of symbols withpch = 21:25
.- draw
logical 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.