comp: Constructs and evaluates a single warplet.

In MRwarping: Multiresolution time warping for functional data.

Description

A quartic warplet kernel is used to construct a warplet with parameters a,lambda,r1,r2,x. This function is used within MRwarp.

Usage

comp(a, lambda, r1, r2, x)

Arguments

a	Center of the warplet kernel.
lambda	Intensity of the warp, should be between (-1,1).
r1	Radius on the left-hand side of the center a, such that a-r1 is the lower bound of the warping domain.
r2	Radius on the right-hand side of the center a, such that a+r2 is the upper bound of the warping domain.
x	Time point where to evaluate the warplet.

Value

The vector of warped time points.

Author(s)

L. Slaets, G. Claeskens, B.W. Silverman.

References

See the papers: Slaets, Claeskens and Silverman (2010). Warping functional data in R and C via a Bayesian Multiresolution approach. Journal of Statistical Software, 55(3), 1-22,
URL http://www.jstatsoft.org/v55/i03/.

Claeskens, Silverman and Slaets (2010). A multiresolution approach to time warping achievec by a Bayesian prior-posterior transfer fitting strategy. Journal of the Royal Statistical Society, Series B, 72(5), 673-694.

MRwarping documentation built on May 2, 2019, 2:13 a.m.