A Stable Isotope Mixing Model

Fits a stable isotope mixing model via JAGS in R. The package allows for any number of isotopes or sources, as well as concentration dependencies.

Welcome to simmr!

simmr is a Bayesian stable isotope mixing model implemented in R which also uses JAGS. It is intended as a replacement to the SIAR package. You can install the development version of the package in R with the commands:

install_github('andrewcparnell/simmr',build_vignettes =TRUE)

You can then load the package with


A vignette (i.e. a simple user manual) is available via:


If you want the official stable version of the package from CRAN then go to R and type:


You can then load the package and view the vignette with:



Reference manual

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0.3 by Andrew Parnell, 2 years ago

Browse source code at https://github.com/cran/simmr

Authors: Andrew Parnell

Documentation:   PDF Manual  

GPL (>= 2) license

Imports MASS, compositions, boot, reshape2, coda, graphics, stats, viridis

Depends on rjags, ggplot2

Suggests knitr

See at CRAN