nsdr: Nonlinear Sufficient Dimension Reduction

Provides tools to implement both unsupervised and supervised nonlinear dimension reduction methods. Principal Component Analysis (PCA), Sliced Inverse Regression (SIR), and Sliced Average Variance Estimation (SAVE) are useful methods to reduce the dimensionality of covariates. However, they produce linear combinations of covariates. Kernel PCA, generalized SIR, and generalized SAVE address this problem by extending the applicability of the dimension reduction problem to nonlinear settings. This package includes a comprehensive algorithm for kernel PCA, generalized SIR, and generalized SAVE, including methods for choosing tuning parameters and some essential functions.

Version: 0.1.1
Depends: R (≥ 3.5.0)
Suggests: testthat (≥ 3.0.0)
Published: 2021-06-03
Author: Bing Li [aut], Kyongwon Kim [aut, cre]
Maintainer: Kyongwon Kim <kimk at ewha.ac.kr>
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
NeedsCompilation: no
CRAN checks: nsdr results


Reference manual: nsdr.pdf


Package source: nsdr_0.1.1.tar.gz
Windows binaries: r-devel: nsdr_0.1.1.zip, r-release: nsdr_0.1.1.zip, r-oldrel: nsdr_0.1.1.zip
macOS binaries: r-release (arm64): nsdr_0.1.1.tgz, r-oldrel (arm64): nsdr_0.1.1.tgz, r-release (x86_64): nsdr_0.1.1.tgz, r-oldrel (x86_64): nsdr_0.1.1.tgz
Old sources: nsdr archive


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