Returns an object of class list containing the following components:
x1, x2minimum and maximum x
value.
y1, y2minimum and maximum y
value.
z1, z2minimum and maximum z
value.
x1.chk, x2.chkif true, a default value is used for the minimum and maximum x
value.
y1.chk, y2.chkif true, a default value is used for the minimum and maximum y
value.
z1.chk, z2.chkif true, a default value is used for the minimum and maximum z
value.
xvector of x
limits (x1,x2)
, default is (NA,NA)
.
yvector of y
limits (y1,y2)
, default is (NA,NA)
.
zvector of z
limits (z1,z2)
, default is (NA,NA)
.