A Collection of Methods for Left-Censored Missing Data Imputation R package imputeLCMD version 2.1 CRAN Task View: MissingData (https://CRAN.R-project.org/view=MissingData) CRAN Task View: Omics (https://CRAN.R-project.org/view=Omics) A collection of functions for left-censored missing data imputation. Left-censoring is a special case of missing not at random (MNAR) mechanism that generates non-responses in proteomics experiments. The package also contains functions to artificially generate peptide/protein expression data (log-transformed) as random draws from a multivariate Gaussian distribution as well as a function to generate missing data (both randomly and non-randomly). For comparison reasons, the package also contains several wrapper functions for the imputation of non-responses that are missing at random. * New functionality has been added: a hybrid method that allows the imputation of missing values in a more complex scenario where the missing data are both MAR and MNAR. Software Depends: R (>= 2.10), tmvtnorm, norm, pcaMethods, impute Samuel Wieczorek <samuel.wieczorek@cea.fr> Comprehensive R Archive Network (CRAN) Cosmin Lazar [aut], Thomas Burger [aut], Samuel Wieczorek [cre, ctb] GPL (>= 2) 2022-06-10 application/tgz https://CRAN.R-project.org/package=imputeLCMD doi:10.32614/CRAN.package.imputeLCMD