| predict.trls {spatial} | R Documentation |
Predicted values based on trend surface model object
predict(obj, x, y)
obj |
Fitted trend surface model object returned by surf.ls
|
x |
Vector of prediction location eastings (x coordinates) |
y |
Vector of prediction location northings (y coordinates) |
predict.trls produces a vector of predictions corresponding
to the prediction locations. To display the output with image
or contour, use trmat or convert the returned vector
to matrix form.
data(topo)
topo2 <- surf.ls(2, topo)
topo4 <- surf.ls(4, topo)
x <- c(1.78, 2.21)
y <- c(6.15, 6.15)
z2 <- predict(topo2, x, y)
z4 <- predict(topo4, x, y)
cat("2nd order predictions:", z2, "\n4th order predictions:", z4, "\n")