\name{compbiasTest} \alias{compbiasTest} \title{compositional bias test} \description{ . } \usage{ compbiasTest(x, pair=nv(levels(x$samples$group)[1:2] , c('ref','obs')), meta.lev='phylum', meta.lev.lim=min(10,nrow(x$meta.sum[[meta.lev]]))) } \arguments{ \item{x}{a MANTA object.} \item{pair}{named vector of the pair of conditions of interest} \item{meta.lev}{which taxinomic level should this test be run at} \item{meta.lev.lim}{how many underlying taxinomic levels should the analysis be limited to} } \value{ A DGEList object. } \seealso{ DGEList, manta } \examples{ manta.path <- system.file("extdata","PapaGO-BLAST.results-diatoms.Rdata", package="manta") load(manta.path) compbiasTest(x, meta.lev='genus_sp') }