A 'tidyverse' Extension for Ordinations and Biplots
Annotate factors of 'tbl_ord' objects
Augment factors and coordinates of 'tbl_ord' objects
Convenience geoms for row and column matrix factors
Convenience stats for row and column matrix factors
Confer inertia to factors of a 'tbl_ord' object
dplyr verbs for tbl_ord factors
Biplot key drawing functions
Format a tbl_ord for printing
Axes through the origin
Isolines (contour lines)
Intervals depicting ranges, usually about center points
Crosshairs or circle at the origin
Text radiating outward from the origin
Unit circle
Vectors from the origin
Biplots following the grammar of graphics
Augmented implementation of linear discriminant analysis
Log-ratio analysis
Functionality for canonical correlations
Functionality for classical multidimensional scaling objects
Functionality for correspondence analysis ('correspondence') objects
Functionality for eigen-decompositions
Functionality for factor analysis ('factanal') objects
Functionality for k-means clustering ('kmeans') objects
Functionality for linear discriminant analysis ('lda') objects
Functionality for linear model objects
Functionality for log-ratio analysis ('lra') objects
Functionality for multiple correspondence analysis ('mca') objects
Functionality for principal components analysis ('prcomp') objects
Functionality for principal components analysis ('princomp') objects
Functionality for singular value decompositions
Negation of ordination axes
Fit an ordination model to a data object
ggproto classes created and adapted for ordr
ordr package
Plot and biplot methods for 'tbl_ord' objects
Access factors, coordinates, and metadata from ordination objects
Objects exported from other packages
Compute geometric centers and spreads for ordination factors
Restrict geometric data to boundary points for its convex hull
Restrict geometric data to boundary points for its conical hull
Render plot elements for one matrix of an ordination
Multiply artificial coordinates by a scale factor
Calculate a minimum spanning tree among cases or variables
Supplement 'tbl_ord' objects with new data
A unified ordination object class
Biplot theme
Tidiers for 'tbl_ord' objects
Wrappers for lossy ordination methods
Ordination comprises several multivariate exploratory and explanatory techniques with theoretical foundations in geometric data analysis; see Podani (2000, ISBN:90-5782-067-6) for techniques and applications and Le Roux & Rouanet (2005) <doi:10.1007/1-4020-2236-0> for foundations. Greenacre (2010, ISBN:978-84-923846) shows how the most established of these, including principal components analysis, correspondence analysis, multidimensional scaling, factor analysis, and discriminant analysis, rely on eigen-decompositions or singular value decompositions of pre-processed numeric matrix data. These decompositions give rise to a set of shared coordinates along which the row and column elements can be measured. The overlay of their scatterplots on these axes, introduced by Gabriel (1971) <doi:10.1093/biomet/58.3.453>, is called a biplot. 'ordr' provides inspection, extraction, manipulation, and visualization tools for several popular ordination classes supported by a set of recovery methods. It is inspired by and designed to integrate into 'tidyverse' workflows provided by Wickham et al (2019) <doi:10.21105/joss.01686>.