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Nearest shrunken centroid (NSC) classifiers for high-dimensional, low-sample-size data such as gene expression. Implements the original homoscedastic NSC with soft thresholding (Prediction Analysis of Microarrays; Tibshirani et al. 2002 <doi:10.1073/pnas.082099299>), its hard- and order-thresholding versions (Sahtout, Wang and Ghimire 2024 <doi:10.1080/03610918.2022.2047201>), and the heteroscedastic extension of Sahtout and Wang that uses class-specific variances in both the test statistic and the discriminant function (methods STh3, HTh3 and OTh3). The thresholding parameter is selected by a refined ("deep") cross-validation search. Also provides the simulation design, per-class performance metrics and the relative-heterogeneity diagnostic used in the paper.
| Version: | 0.1.0 |
| Depends: | R (≥ 3.5.0) |
| Imports: | MASS, stats |
| Suggests: | testthat (≥ 3.0.0), knitr, rmarkdown, pamr |
| Published: | 2026-11-07 |
| DOI: | 10.32614/CRAN.package.hetNSC |
| Author: | Haiyan Wang [aut, cre], Mohammad Omar Sahtout [aut], Trevor Hastie [ctb] (Author of the 'pamr' code this package is derived from), Robert Tibshirani [ctb] (Author of the 'pamr' code this package is derived from), Balasubramanian Narasimhan [ctb] (Author of the 'pamr' code this package is derived from), Gilbert Chu [ctb] (Author of the 'pamr' code this package is derived from) |
| Maintainer: | Haiyan Wang <hwang at ksu.edu> |
| License: | GPL-2 |
| NeedsCompilation: | no |
| Citation: | hetNSC citation info |
| Materials: | README, NEWS |
| CRAN checks: | hetNSC results |
| Reference manual: | hetNSC.html , hetNSC.pdf |
| Vignettes: |
Getting started with hetNSC (source, R code) |
| Package source: | hetNSC_0.1.0.tar.gz |
| Windows binaries: | r-devel: hetNSC_0.1.0.zip, r-release: hetNSC_0.1.0.zip, r-oldrel: not available |
| macOS binaries: | r-release (arm64): hetNSC_0.1.0.tgz, r-oldrel (arm64): hetNSC_0.1.0.tgz, r-release (x86_64): hetNSC_0.1.0.tgz, r-oldrel (x86_64): hetNSC_0.1.0.tgz |
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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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