Usage
## S3 method for class 'nifti,nifti':
overlay(x, y, z=1, w=1, col.x=gray(0:64/64),
col.y=hotmetal(), zlim.x=NULL, zlim.y=NULL,
plot.type=c("multiple","single"), xlab="", ylab="",
axes=FALSE, oma=rep(0,4), mar=rep(0,4), bg="black", ...)
## S3 method for class 'anlz,anlz':
overlay(x, y, z=1, w=1, col.x=gray(0:64/64),
col.y=hotmetal(), zlim.x=NULL, zlim.y=NULL,
plot.type=c("multiple","single"), xlab="", ylab="",
axes=FALSE, oma=rep(0,4), mar=rep(0,4), bg="black", ...)Arguments
x,y
is an object of class "nifti" or "anlz".
z
is the slice to be displayed (ignored when plot.type =
"multiple").
w
is the time point to be displayed (4D arrays only).
col.x
is grayscale (by default).
col.y
is hotmetal (by default).
zlim.x,zlim.y
are set to NULL (by default) and taken
from the header information.
plot.type
allows the choice between all slices being displayed,
in a matrix (left-to-right, top-to-bottom), or a single slice.
xlab
is set to "" since all margins are set to zero.
ylab
is set to "" since all margins are set to zero.
axes
is set to FALSE since all margins are set to zero.
oma
is the size of the outer margins in the par function.
mar
is the number of lines of margin in the par function.
bg
is the background color in the par function.
...
other arguments to the image function may be
provided here.