lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models

Abstract Background Studies that utilize RNA Sequencing (RNA-Seq) in conjunction with designs that introduce dependence between observations (e.g. longitudinal sampling) require specialized analysis tools to accommodate this additional complexity. This R package contains a set of utilities to fit li...

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Main Authors: Brian E. Vestal, Elizabeth Wynn, Camille M. Moore
Format: Article
Language:English
Published: BMC 2022-11-01
Series:BMC Bioinformatics
Subjects:
Online Access:https://doi.org/10.1186/s12859-022-05019-9
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author Brian E. Vestal
Elizabeth Wynn
Camille M. Moore
author_facet Brian E. Vestal
Elizabeth Wynn
Camille M. Moore
author_sort Brian E. Vestal
collection DOAJ
description Abstract Background Studies that utilize RNA Sequencing (RNA-Seq) in conjunction with designs that introduce dependence between observations (e.g. longitudinal sampling) require specialized analysis tools to accommodate this additional complexity. This R package contains a set of utilities to fit linear mixed effects models to transformed RNA-Seq counts that properly account for this dependence when performing statistical analyses. Results In a simulation study comparing lmerSeq and two existing methodologies that also work with transformed RNA-Seq counts, we found that lmerSeq was comprehensively better in terms of nominal error rate control and statistical power. Conclusions Existing R packages for analyzing transformed RNA-Seq data with linear mixed models are limited in the variance structures they allow and/or the transformation methods they support. The lmerSeq package offers more flexibility in both of these areas and gave substantially better results in our simulations.
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spelling doaj.art-a54bd06a29fe4c959d9b929f57c56dc82022-12-22T04:15:10ZengBMCBMC Bioinformatics1471-21052022-11-0123111310.1186/s12859-022-05019-9lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects modelsBrian E. Vestal0Elizabeth Wynn1Camille M. Moore2Center for Genes, Environment and Health, National Jewish HealthDepartment of Biostatistics and Informatics, University of Colorado DenverCenter for Genes, Environment and Health, National Jewish HealthAbstract Background Studies that utilize RNA Sequencing (RNA-Seq) in conjunction with designs that introduce dependence between observations (e.g. longitudinal sampling) require specialized analysis tools to accommodate this additional complexity. This R package contains a set of utilities to fit linear mixed effects models to transformed RNA-Seq counts that properly account for this dependence when performing statistical analyses. Results In a simulation study comparing lmerSeq and two existing methodologies that also work with transformed RNA-Seq counts, we found that lmerSeq was comprehensively better in terms of nominal error rate control and statistical power. Conclusions Existing R packages for analyzing transformed RNA-Seq data with linear mixed models are limited in the variance structures they allow and/or the transformation methods they support. The lmerSeq package offers more flexibility in both of these areas and gave substantially better results in our simulations.https://doi.org/10.1186/s12859-022-05019-9RNA-SeqLinear mixed modelsCorrelated data
spellingShingle Brian E. Vestal
Elizabeth Wynn
Camille M. Moore
lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
BMC Bioinformatics
RNA-Seq
Linear mixed models
Correlated data
title lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
title_full lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
title_fullStr lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
title_full_unstemmed lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
title_short lmerSeq: an R package for analyzing transformed RNA-Seq data with linear mixed effects models
title_sort lmerseq an r package for analyzing transformed rna seq data with linear mixed effects models
topic RNA-Seq
Linear mixed models
Correlated data
url https://doi.org/10.1186/s12859-022-05019-9
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