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cplm (version 0.7-2)

sp2d: 2-dimentional Radial Spline

Description

2-dimentional radial spline generator used in cpglmm

Usage

sp2d(x1, x2, k = max(20, min(length(x1)/4, 150)), by = NULL, 
allPen = FALSE, varying = NULL, diag = FALSE, 
knots1 = quantile(x1, probs = 1:k/(k + 1)), 
knots2 = quantile(x1, probs = 1:k/(k + 1)))

Arguments

x1
the first covariate in the coordinate
x2
the second covariate in the coordinate
k
number of knots
by
not used. This is just for compatibility with amer.
allPen
not used. This is just for compatibility with amer.
varying
not used. This is just for compatibility with amer.
diag
not used. This is just for compatibility with amer.
knots1
vector of knot locations for the first covariate in the coordinate
knots2
vector of knot locations for the second covariate in the coordinate