Dec 12, 2018

pcaExplorer: an R/Bioconductor package for interacting with RNA-seq principal components

BioRxiv : the Preprint Server for Biology
Federico Marini, Harald Binder


Background: Principal component analysis (PCA) is frequently used in genomics applications for quality assessment and exploratory analysis in high-dimensional data, such as RNA sequencing (RNA-seq) gene expression assays. Despite the availability of many software packages developed for this purpose, an interactive and comprehensive interface for performing these operations is lacking. Results: We developed the pcaExplorer software package to enhance commonly performed analysis steps with an interactive and user-friendly application, which provides state saving as well as the automated creation of reproducible reports. pcaExplorer is implemented in R using the Shiny framework and exploits data structures from the open- source Bioconductor project. Users can easily generate a wide variety of publication-ready graphs, while assessing the expression data in the different modules available, including a general overview, dimension reduction on samples and genes, as well as functional interpretation of the principal components. Conclusion: pcaExplorer is distributed as an R package in the Bioconductor project (, and is designed to assist a broad range of researchers in the critical step of...Continue Reading

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Mentioned in this Paper

Computer Software
Sequence Determinations, RNA
Research Personnel
Gene Expression
Gene Expression Profiling

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