Tools for working with rotational data, including
    simulation from the most commonly used distributions on SO(3),
    methods for different Bayes, mean and median type estimators for
    the central orientation of a sample, confidence/credible
    regions for the central orientation based on those estimators and
    a novel visualization technique for rotation data.  Most recently,
    functions to identify potentially discordant (outlying) values
    have been added.  References: Bingham, Melissa A. and Nordman, Dan J. and Vardeman, Steve B. (2009),
    Bingham, Melissa A and Vardeman, Stephen B and Nordman, Daniel J (2009),
    Bingham, Melissa A and Nordman, Daniel J and Vardeman, Stephen B (2010),
    Leon, C.A. and Masse, J.C. and Rivest, L.P. (2006),
    Hartley, R and Aftab, K and Trumpf, J. (2011),
    Stanfill, Bryan and Genschel, Ulrike and Hofmann, Heike (2013),
    Maonton, Jonathan (2004), 
    Mardia, KV and Jupp, PE (2000, ISBN:9780471953333), 
    Rancourt, D. and Rivest, L.P. and Asselin, J. (2000),
    Chang, Ted and Rivest, Louis-Paul (2001), 
    Fisher, Nicholas I. (1996, ISBN:0521568900).

A rotatogram is a method of displaying an association which is axis non-dominant. This is achieved in two ways: First, the method of estimating the slope and intercept uses the least-products method rather than more typical least squared error for the "dependent" variable. The least products method has no "dependent" variable and is scale independent. Second, the plot is rotated such that the resulting regression line is vertical, reducing the suggestion that the vertical axis is the dominant one. The slope can be read relative to either axis equally.

An interface to the 'Open Tree of Life' API to retrieve
    phylogenetic trees, information about studies used to assemble the
    synthetic tree, and utilities to match taxonomic names to 'Open Tree
    identifiers'. The 'Open Tree of Life' aims at assembling a
    comprehensive phylogenetic tree for all named species.