siar-package: Stable Isotope Analysis in R.

Description Details Author(s) See Also Examples


This package takes data on animal isotopes and fits a Bayesian model to their dietary habits based upon a Gaussian likelihood with a dirichlet prior mixture on the mean. The main function, siarmcmcdirichletv4(), allows the user to specify the data and choose the size of the MCMC run. A wrapper for the package, siarmenu() gives a walkthrough of all the functions contained in the package and produces some pretty plots. Some example data on Geese plasma is included for illustration.


Package: siar
Type: Package
Version: 4.2
Date: 2010-04-22
License: GPL (>= 2)

For a demo of how to use the package, type siarmenu() and then choose option 9,


Andrew Parnell <>

See Also

siarmenu siarmcmcdirichletv4


## See siarmenu()

Example output

Loading required package: hdrcde
Loading required package: mvtnorm
hdrcde 3.1 loaded

Loading required package: coda
Loading required package: MASS
Loading required package: bayesm
Loading required package: mnormt
Loading required package: spatstat
Loading required package: nlme
Loading required package: rpart

spatstat 1.52-1       (nickname: 'Apophenia') 
For an introduction to spatstat, type 'beginner' 

Note: spatstat version 1.52-1 is out of date by more than 4 months; we recommend upgrading to the latest version.

Attaching package: 'spatstat'

The following object is masked from 'package:MASS':


Attaching package: 'siar'

The following object is masked from 'package:spatstat':


siar documentation built on May 2, 2019, 11:02 a.m.