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Evaluate Kriging Surface over a Grid
Usage
prmat(obj, xl, xu, yl, yu, n)
Arguments
obj
|
object returned by surf.gls
|
xl
|
limits of the rectangle for grid
|
xu
|
|
yl
|
|
yu
|
|
n
|
use n (mu n grid within the rectangle
|
Description
Evaluate Kriging surface over a grid.
Value
list with components x
, y
and z
suitable for contour
and image
.
See Also
surf.gls
, trmat
, semat
Examples
data(topo)
topo.kr <- surf.gls(2, expcov, topo, d=0.7)
prsurf <- prmat(topo.kr, 0, 6.5, 0, 6.5, 50)
contour(prsurf$x, prsurf$y, prsurf$z, levels=seq(700, 925, 25))