invertGamma {fdasrvf}

Invert Warping Function

Description

This function calculates the inverse of gamma

Usage

invertGamma(gam)

Arguments

gam

vector of N samples

Value

Returns gamI inverted vector

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

out <- invertGamma(simu_warp$warping_functions[, 1])