slideimp: Numeric Matrices K-NN and PCA Imputation

Fast k-nearest neighbors (K-NN) and principal component analysis (PCA) imputation algorithms for missing values in high-dimensional numeric matrices, i.e., epigenetic data. For extremely high-dimensional data with ordered features, a sliding window approach for K-NN or PCA imputation is provided. Additional features include group-wise imputation (e.g., by chromosome), hyperparameter tuning with repeated cross-validation, multi-core parallelization, and optional subset imputation. The K-NN algorithm is described in: Hastie, T., Tibshirani, R., Sherlock, G., Eisen, M., Brown, P. and Botstein, D. (1999) "Imputing Missing Data for Gene Expression Arrays". The PCA imputation is an optimized version of the imputePCA() function from the 'missMDA' package described in: Josse, J. and Husson, F. (2016) <doi:10.18637/jss.v070.i01> "missMDA: A Package for Handling Missing Values in Multivariate Data Analysis".

Version: 0.5.4
Depends: R (≥ 4.1.0)
Imports: bigmemory, checkmate, collapse, mirai, purrr, Rcpp, stats, tibble
LinkingTo: mlpack, Rcpp, RcppArmadillo, RcppEnsmallen
Suggests: carrier, FactoMineR, knitr, missMDA, rlang, rmarkdown, testthat (≥ 3.0.0)
Published: 2026-01-07
DOI: 10.32614/CRAN.package.slideimp (may not be active yet)
Author: Hung Pham ORCID iD [aut, cre, cph]
Maintainer: Hung Pham <amser.hoanghung at gmail.com>
BugReports: https://github.com/hhp94/slideimp/issues
License: GPL-2 | GPL-3 [expanded from: GPL (≥ 2)]
URL: https://github.com/hhp94/slideimp
NeedsCompilation: yes
Materials: README, NEWS
CRAN checks: slideimp results

Documentation:

Reference manual: slideimp.html , slideimp.pdf
Vignettes: slideimp (source, R code)

Downloads:

Package source: slideimp_0.5.4.tar.gz
Windows binaries: r-devel: not available, r-release: slideimp_0.5.4.zip, r-oldrel: not available
macOS binaries: r-release (arm64): slideimp_0.5.4.tgz, r-oldrel (arm64): slideimp_0.5.4.tgz, r-release (x86_64): slideimp_0.5.4.tgz, r-oldrel (x86_64): slideimp_0.5.4.tgz

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