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.

cran version rstudio mirror downloads rstudio mirror downloads

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