The hardware and bandwidth for this mirror is donated by dogado GmbH, the Webhosting and Full Service-Cloud Provider. Check out our Wordpress Tutorial.
If you wish to report a bug, or if you are interested in having us mirror your free-software or open-source project, please feel free to contact us at mirror[@]dogado.de.

barrel: Ordination visualization in R

barrel

A tidy and flexible framework for visualizing multivariate ordinations in R

Overview

barrel is an R package that enhances the visualization of ordination analyses (e.g. NMDS, RDA, dbRDA) using ggplot2. It provides a modular set of tools to add ellipses, centroids, environmental vectors, and annotations — all compatible with tidyverse workflows.

Installation

From CRAN:

install.packages("barrel")

Development version from GitHub:

# install.packages("devtools")
devtools::install_github("BarrancoElena/barrel")

Quick example

library(vegan)
library(barrel)
library(ggplot2)

data(dune)
data(dune.env)

ord <- metaMDS(dune)
ord <- barrel_prepare(ord, dune.env)

autoplot(ord, group = "Management", data = dune)

# barrel

Key features

• autoplot(): single-function plotting of NMDS, RDA, dbRDA, CCA, etc.
• Support for method = "classic" and "robust" covariance estimation
• Ellipses (stat_barrel()), centroids (stat_barrel_centroid()), vectors (stat_barrel_arrows())
• Annotated variance or stress via stat_barrel_annotate()
• Functions to extract group summaries and environmental fits
• Customizable with standard ggplot2 syntax

Vignette

A full user guide is available:

browseVignettes("barrel")

Dependencies

• vegan

• ggplot2

• ggrepel

• robustbase

• grid

• rlang

Author

Diego Barranco-Elena
@BarrancoElena

License

MIT © 2025 Diego Barranco-Elena

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.