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ALS (version 0.0.7)

Multivariate Curve Resolution Alternating Least Squares (MCR-ALS)

Description

Alternating least squares is often used to resolve components contributing to data with a bilinear structure; the basic technique may be extended to alternating constrained least squares. Commonly applied constraints include unimodality, non-negativity, and normalization of components. Several data matrices may be decomposed simultaneously by assuming that one of the two matrices in the bilinear decomposition is shared between datasets.

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Install

install.packages('ALS')

Monthly Downloads

371

Version

0.0.7

License

GPL (>= 2)

Last Published

August 25th, 2022

Functions in ALS (0.0.7)

als

alternating least squares multivariate curve resolution (MCR-ALS)
multiex

Data inspired by GC mass spectrometry experiments
Internals

MCR-ALS functions used internally
plotS

Plots a matrix representing mass spectra
multiex1

Data inspired by GC mass spectrometry experiments
matchFactor

Matching factor functions to describe similarity of two vectors