get_ord_axis_labels

This function infers the ordination method used and returns proper axis labels
including percentage of explained variance when applicable.

Provides tools to visualize ordination results in 'R' by adding covariance-based ellipses, centroids, vectors, and confidence regions to plots created with 'ggplot2'.
The package extends the 'vegan' framework and supports Principal Component Analysis (PCA), Redundancy Analysis (RDA), and Non-metric Multidimensional Scaling (NMDS).
Ellipses can represent either group dispersion (standard deviation, SD) or centroid precision (standard error, SE), following Wang et al. (2015) <doi:10.1371/journal.pone.0118537>.
Robust estimators of covariance are implemented, including the Minimum Covariance Determinant (MCD) method of Hubert et al. (2018) <doi:10.1002/wics.1421>.
This approach reduces the influence of outliers.
barrel is particularly useful for multivariate ecological datasets, promoting reproducible, publication-quality ordination graphics with minimal effort.

Diego Barranco-Elena

barrel

Covariance-Based Ellipses and Annotation Tools for Ordination
Plots

get_ord_axis_labels function

<dl><dt>ord</dt>
<dd>A vegan ordination object.</dd></dl>

Arguments

Internal function to get axis labels for vegan ordination objects — get_ord_axis_labels

<dl>

<dt>ord</dt>
<dd>A vegan ordination object.</dd>

</dl>

get_ord_axis_labels: Internal function to get axis labels for vegan ordination objects

Description

Usage

Value

Arguments