Evaluates the Demmler-Reinsch basis fucntions
Usage
make.drb(out, x1=out$x)
Arguments
out
|
tps output object
|
x1
|
matrixc of points to evaluate the basis functions.
|
Value
A matrx where the columns index different basis fucntions and rows
index the points in x1.References
See the FUNFITS manual for details on teh relationship between this
basis and the usual one.See Also
tpsExamples
# First create a tps object
tps( ozone$x, ozone$y)-> out
make.drb( out)-> hold
# to calculate the u vector important for tps calulations
t(hold)%*% out$y -> u