Plots a surface and contours
Usage
surface.addreg(obj, grid.list=NA, extrap=F, graphics.reset=T, ...)
Arguments
obj
|
A addreg object.
|
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.
|
extrap
|
Extraplolation beyond the range of the data.
|
graphics.reset
|
Reset to original graphics parameters after function plotting.
|
...
|
Any plotting arguments.
|
Description
Two plots are made, a surface plot and a contour plot.Value
See Also
addreg, surfaceExamples
# Additive model fit to the minitriathon data. A prediction of
# run times based on the swim and bike performance.
# The smoothing parameters found by GCV with cost=2.
cbind( minitri$swim, minitri$bike)-> x
addreg( x,minitri$run,cost=2)-> out
surface(out) # plots surface and contours of fit