RankProd 2.0: A refactored bioconductor package for detecting differentially expressed features in molecular profiling datasets
Number of pages
SourceBioinformatics, 33, 17, (2017), pp. 2774-2775
Article / Letter to editor
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SW OZ RSCR SOC
SubjectData Science; Inequality Cohesion Rationalization; Ongelijkheid Cohesie Rationalisatie
Motivation: The Rank Products is a statistical technique widely used to detect differentially expressed features in molecular profiling experiments such as transcriptomics, metabolomics and proteomics studies. An implementation of the Rank Product (RP) and the closely related Rank Sum (RS) statistics has been available in the RankProd Bioconductor package for several years. However, several recent advances in the understanding of the statistical foundations of the method have made a complete refactoring of the existing package desirable. Results: We implemented a completely refactored version of the RankProd package, which provides a more principled implementation of the statistics for unpaired datasets. Moreover, the permutation-based p-value estimation methods have been replaced by exact methods, providing faster and more accurate results. Availability: RankProd 2.0 is available at Bioconductor (https://www.bioconductor.org/packages/devel/bioc/html/RankProd.html) and as part of the mzMatch pipeline (http://www.mzmatch.sourceforge.net).
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