SIBER-package |
SIBER: A package for fitting Bayesian Ellipses to Stable Isotope Data |
addEllipse |
Adds an ellipse around some data to an existing plot |
bayesianLayman |
Calculate Layman metrics on Bayesian postrior samples of a community |
communityMetricsML |
Calculate the point estimates of the Layman metrics for each community |
createSiberObject |
Read in SIBER format data and generate the SIBER object |
demo.siber.data |
Simulated d13C and d15N isotope-space data |
ellipseBackTransform |
Back-transform a z-score siber ellipse to original location and scale. |
extractPosteriorMeans |
Extract posterior means from call to 'siberMVN' |
fitEllipse |
Fit a multivariate normal distribution to x and y data using jags |
genCircle |
Create a sequence of points on a circle |
generateSiberCommunity |
A utility function to simulate a single community comprised of groups |
generateSiberData |
A utility function to simulate isotope data for several communities |
generateSiberGroup |
A utility function to simulate a single group of data |
groupMetricsML |
Calculate maximum likelihood based measures of dispersion of bivariate data |
hullArea |
Calculate the area of a convex hull given its coordinates |
laymanMetrics |
Calculates the 6 Layman metrics on a vector of x and y data |
plotCommunityHulls |
Adds convex hulls to each community to an existing plot |
plotGroupEllipses |
Adds ellipses to an existing plot for each of your groups |
plotGroupHulls |
Plots illustrative convex hulls for each group within all communities |
plotSiberObject |
Creates an isotope biplot and provides a wrapper to ellipse and hull plotting |
posteriorSEA |
Calculate the SEA based on a posterior distribution of Sigma |
SIBER |
SIBER: A package for fitting Bayesian Ellipses to Stable Isotope Data |
siberConvexhull |
Calculate metrics and plotting information for convex hulls |
siberDensityPlot |
Plot credible intervals as shaded boxplots using 'hdr.boxplot' |
siberEllipses |
Calculate the point estimates of the Layman metrics for each community |
siberMVN |
Fit Bayesian bivariate normal distributions to each group in each community |
sigmaSEA |
Calculate metrics corresponding to the Standard Ellipse based on a covariance matrix |