The [https://cran.r-project.org/web/packages/caroline/index.html caroline CRAN R package] contains the only known implementation of an RA plot.  However, the meta-transcriptomics [http://bioconductor.org/packages/devel/bioc/html/manta.html "manta" R package] provides a wrapper around this RA plot implementation and is used for assessing fold change in transcription of genes (the points) while simultaneously visualizing each gene's taxonomic distributions as individual pie chart points.