warp_q_gamma: Warp SRSF

In fdasrvf: Elastic Functional Data Analysis

Warp SRSF

Description

This function warps srsf q by \gamma

Usage

warp_q_gamma(q, time, gamma, spl.int = FALSE)

Arguments

q	vector
time	time
gamma	vector warping function
spl.int	use spline interpolation (default F)

Value

qnew warped function

References

Srivastava, A., Wu, W., Kurtek, S., Klassen, E., Marron, J. S., May 2011. Registration of functional data using fisher-rao metric, arXiv:1103.3817v2.

Tucker, J. D., Wu, W., Srivastava, A., Generative Models for Function Data using Phase and Amplitude Separation, Computational Statistics and Data Analysis (2012), 10.1016/j.csda.2012.12.001.

Examples

q <- f_to_srvf(simu_data$f, simu_data$time)
qnew <- warp_q_gamma(q[, 1], simu_data$time, seq(0, 1, length.out = 101))

fdasrvf documentation built on Oct. 5, 2024, 1:08 a.m.