FluxPoint: Change Point Detection for Non-Stationary and Cross-Correlated Time Series

Implements methods for multiple change point detection in multivariate time series with non-stationary dynamics and cross-correlations. The methodology is based on a model in which each component has a fluctuating mean represented by a random walk with occasional abrupt shifts, combined with a stationary vector autoregressive structure to capture temporal and cross-sectional dependence. The framework is broadly applicable to correlated multivariate sequences in which large, sudden shifts occur in all or subsets of components and are the primary targets of interest, whereas small, smooth fluctuations are not. Although random walks are used as a modeling device, they provide a flexible approximation for a wide class of slowly varying or locally smooth dynamics, enabling robust performance beyond the strict random walk setting.

Version: 0.1.1
Imports: Rcpp, blockmatrix, corpcor, doParallel, ggplot2, glmnet, MASS, Matrix, nnls, pracma, SimDesign
LinkingTo: Rcpp, RcppArmadillo
Published: 2026-01-06
DOI: 10.32614/CRAN.package.FluxPoint (may not be active yet)
Author: Yuhan Tian [aut, cre], Abolfazl Safikhani [aut]
Maintainer: Yuhan Tian <yuhan.tian at fau.de>
License: GPL-2
NeedsCompilation: yes
Citation: FluxPoint citation info
Materials: NEWS
CRAN checks: FluxPoint results

Documentation:

Reference manual: FluxPoint.html , FluxPoint.pdf

Downloads:

Package source: FluxPoint_0.1.1.tar.gz
Windows binaries: r-devel: not available, r-release: not available, r-oldrel: not available
macOS binaries: r-release (arm64): FluxPoint_0.1.1.tgz, r-oldrel (arm64): FluxPoint_0.1.1.tgz, r-release (x86_64): FluxPoint_0.1.1.tgz, r-oldrel (x86_64): FluxPoint_0.1.1.tgz

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