trmat(obj, xl, xu, yl, yu, n)
obj
|
object returned by surf.ls or surf.gls
|
xl
| limits of the rectangle for grid |
xu
| |
yl
| |
yu
| |
n
|
use n x n grid within the rectangle
|
x
, y
and z
suitable for contour
and image
.surf.ls
, surf.gls
topo.kr <- surf.ls(2, topo) trsurf <- trmat(topo.kr, 0, 6.5, 0, 6.5, 50)