angle.mapping: Principle angle mapping

In changepoint.geo: Geometrically Inspired Multivariate Changepoint Detection

Principle angle mapping

Description

Calculates the principle angle of each time vector to the reference vector. Note data points are not translated in this function and error checking is not performed!

Usage

angle.mapping(X,ref.vec.value=rep(1,length(X[1,])))

Arguments

X	A matrix containing the centralized data of size n by p.
ref.vec.value	A vector containing the reference vector from which the principle angle will be calculated.

Details

This function calculates the principle angle between each time vector and the reference vector. Note the translation within geomcp happens outside of the function.

Value

A vector of length n is returned with the angle mapping for each time point.

Author(s)

Thomas Grundy

See Also

geomcp

Examples

X <- rbind(matrix(rnorm(100*50,2),ncol=50),matrix(rnorm(100*50,2,4),ncol=50))
ref.vec.value <- rep(1,50)
ans <- angle.mapping(X,ref.vec.value)
ans

changepoint.geo documentation built on Sept. 24, 2023, 1:06 a.m.