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rubias — genetic stock identification (GSI) in the tidyverse <img src="man/figures/rubias-sticker.png" align="right" width="200"/>

rubias is an R package for performing genetic stock identification (GSI) and associated tasks. Additionally, it includes a method designed to diagnose and correct a bias recently documented in genetic stock identification. The bias occurs when mixture proportion estimates are desired for groups of populations (reporting units) and the number of populations within each reporting unit are uneven.

More recently, the package has been enhanced to:

1. Allow sampling from the posterior probability of the total catch See Vignette
2. Provide enhanced tools to understand whether mixing proportions $<\frac{1}{N}$ are the result of fish in the mixture that actually look like they belong to a certain reporting unit or whether it is from the accumulation of a lot of uncertainty. The vignette about this also suggests a decision-theoretic criterion for declaring some such mixture components as empty.

The CRAN version has not kept up with this version on GitHub, primarily because there is an one chip/compiler combination upon which the fully-bayesian version code encounters some memory problems. In the meantime, to install the development version you can simply do:

remotes::install_github("eriande/rubias")

Full pkgdown documentation is now available at https://eriqande.github.io/rubias/.