| grid.yaxis {grid} | R Documentation |
These functions create and draw a y-axis.
grid.yaxis(at = NULL, label = TRUE, main = TRUE, name = NULL, gp =gpar(),
draw = TRUE, vp = NULL)
yaxisGrob(at = NULL, label = TRUE, main = TRUE, name = NULL, gp =gpar(),
vp = NULL)
at |
A numeric vector of y-value locations for the tick marks. |
label |
A logical value indicating whether to draw the labels on the tick marks. |
main |
A logical value indicating whether to draw the axis
at the left (TRUE) or at the right (FALSE) of the
viewport. |
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 obect (or NULL). |
Both functions create a yaxis grob (a graphical object describing a
yaxis), but only grid.yaxis
draws the yaxis (and then only if draw is TRUE).
A yaxis grob. grid.yaxis returns the value invisibly.
If the at slot of an xaxis grob is not NULL then
the xaxis will have the following children:
If the at slot is NULL then there are no children
and ticks are drawn based on the current viewport scale.
Paul Murrell