geospt (version 1.0-1)

RBF.phi: radial basis function evaluation

Description

generate the value associated with radial basis functions; gaussian GAU), exponential (EXPON), trigonometric (TRI), thin plate spline (TPS), completely regularized spline (CRS), spline with tension (ST), inverse multiquadratic (IM), and multiquadratic (M)

Usage

RBF.phi(distance, eta, func)

Value

value obtained from the radial basis function generated with a distance, a eta smoothing parameter, and a function "GAU", "EXPON", "TRI", "TPS", "CRS", "ST", "IM" or "M"

Examples

data(preci) 
d1 <- dist(rbind(preci[1,],preci[2,])) 
RBF.phi(distance=d1, eta=0.5, func="TPS")