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@ -9283,3 +9283,34 @@ linear order on both variables.")
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\"Chemometrics with R - Multivariate Data Analysis in the Natural Sciences and
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\"Chemometrics with R - Multivariate Data Analysis in the Natural Sciences and
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Life Sciences\" by Ron Wehrens, Springer (2011).")
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Life Sciences\" by Ron Wehrens, Springer (2011).")
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(license license:gpl2+)))
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(license license:gpl2+)))
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(define-public r-als
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(package
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(name "r-als")
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(version "0.0.6")
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(source
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(origin
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(method url-fetch)
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(uri (cran-uri "ALS" version))
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(sha256
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(base32
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"1swrn39vy50fazkpf97r7c542gkj6mlvy8gmcxllg7mf2mqx546a"))))
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(properties `((upstream-name . "ALS")))
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(build-system r-build-system)
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(propagated-inputs
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`(("r-iso" ,r-iso)
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("r-nnls" ,r-nnls)))
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(home-page "https://cran.r-project.org/web/packages/ALS")
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(synopsis "Multivariate curve resolution alternating least squares")
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(description
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"Alternating least squares is often used to resolve components
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contributing to data with a bilinear structure; the basic technique may be
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extended to alternating constrained least squares. This package provides an
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implementation of @dfn{multivariate curve resolution alternating least
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squares} (MCR-ALS).
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Commonly applied constraints include unimodality, non-negativity, and
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normalization of components. Several data matrices may be decomposed
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simultaneously by assuming that one of the two matrices in the bilinear
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decomposition is shared between datasets.")
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(license license:gpl2+)))
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