predict.surface {funfits} | R Documentation |
predict.surface(out, grid.list=NA, extrap=F, chull.mask)
out |
An object from fitting a function to data. |
grid.list |
A list with as many components as variables describing the surface. All components should have a single value except the two that give the grid points for evaluation. If the matrix or data frame has column names, these must appear in the grid list. |
chull.mask |
To evaluate on a convex hull, NA's are assigned to outside the convex hull of the data |
extrap |
Extraplolation beyond the range of the data. |
The usual list components for making contour and perspective plots along with the component containing the grid list.
tps, krig, nnreg, predict, persp, contour, interp, grid.list
tps( BD[,1:4], BD$lnya)-> fit # fit surface to data list( KCl="x", MgCl2=mean(BD[,2]),KPO4="y", dNTP=mean(BD[,4]))-> grid # make grid predict.surface(fit,grid) -> out.p # evalute on a grid on two # variables holding two fixed surface(out.p) # surface and contour plot