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focus: Online Changepoint Detection in Univariate and Multivariate Data Streams

Provides high-performance online changepoint detection in univariate and multivariate data streams. Implements efficient 'C++' backends for the 'focus', 'md-focus' and 'np-focus' algorithms, with an 'R' interface for real-time monitoring and offline analysis. The package bundles code from 'Qhull' <http://www.qhull.org/>, by C. B. Barber and The Geometry Center. See 'inst/COPYRIGHTS' for details.

Version: 0.1.3
Imports: Rcpp (≥ 1.1.0)
LinkingTo: Rcpp
Published: 2026-03-31
DOI: 10.32614/CRAN.package.focus
Author: Gaetano Romano [aut, cre, trl], Kes Ward [aut], Yuntang Fan [aut], Guillem Rigaill [aut], Vincent Runge [aut], Paul Fearnhead [aut], Idris A. Eckley [aut], C. B. Barber [ctb, cph] (Author and copyright holder of bundled 'Qhull' library), The Geometry Center [cph] (Copyright holder of bundled 'Qhull' library)
Maintainer: Gaetano Romano <g.romano at lancaster.ac.uk>
License: GPL (≥ 3)
NeedsCompilation: yes
Materials: README
CRAN checks: focus results

Documentation:

Reference manual: focus.html , focus.pdf

Downloads:

Package source: focus_0.1.3.tar.gz
Windows binaries: r-devel: focus_0.1.3.zip, r-release: focus_0.1.2.zip, r-oldrel: focus_0.1.3.zip
macOS binaries: r-release (arm64): focus_0.1.3.tgz, r-oldrel (arm64): not available, r-release (x86_64): focus_0.1.3.tgz, r-oldrel (x86_64): focus_0.1.3.tgz
Old sources: focus archive

Linking:

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These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
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