Dominance analysis relative importance methods that are intended 
    for predictive models.

Provides a parallel backend for the %dopar% function using
        the Rmpi package.

Finds the k nearest neighbours in a dataset of specified points, 
  adding the option to wrap certain variables on a torus.  The user chooses
  the algorithm to use to find the nearest neighbours. Two such algorithms,
  provided by the packages 'RANN' <https://cran.r-project.org/package=RANN>, 
  and 'nabor' <https://cran.r-project.org/package=nabor>, are suggested.

Create donut charts positioned on maps from tidy data. The
    package provides helpers to compute donut polygon geometries, optional
    origin-destination flow lines, ready-to-use 'ggplot2' map layers, and
    interactive 'leaflet' widgets.

Build donut/pie charts with 'ggplot2' layer by layer, exploiting the advantages of polar symmetry. Leverage layouts to distribute labels effectively. Connect labels to donut segments using pins. Streamline annotation and highlighting.

A facility to generate efficient designs for order-of-additions experiments under pair-wise-order model, see Dennis K. J. Lin  and Jiayu Peng (2019)."Order-of-addition 
    experiments: A review and some new thoughts".  Quality Engineering, 31:1,  49-59, <doi:10.1080/08982112.2018.1548021>. It also provides a facility to generate component 
	orthogonal arrays under component position model, see Jian-Feng Yang, Fasheng Sun & Hongquan Xu (2020): "A Component Position Model, Analysis and 
	Design for Order-of-Addition Experiments". Technometrics, <doi:10.1080/00401706.2020.1764394>.

Tools for exploring the topography of 3d triangle meshes.
    The functions were developed with dental surfaces in mind, but could be 
    applied to any triangle mesh of class 'mesh3d'. More specifically, 'doolkit'
    allows to isolate the border of a mesh, or a subpart of the mesh using the 
    polygon networks method; crop a mesh; compute basic descriptors (elevation, 
    orientation, footprint area); compute slope, angularity and relief index
    (Ungar and Williamson (2000) <https://palaeo-electronica.org/2000_1/gorilla/issue1_00.htm>;
    Boyer (2008) <doi:10.1016/j.jhevol.2008.08.002>), inclination and occlusal
    relief index or gamma (Guy et al. (2013) <doi:10.1371/journal.pone.0066142>),
    OPC (Evans et al. (2007) <doi:10.1038/nature05433>), OPCR (Wilson et al. 
    (2012) <doi:10.1038/nature10880>), DNE (Bunn et al. (2011) <doi:10.1002/ajpa.21489>;
    Pampush et al. (2016) <doi:10.1007/s10914-016-9326-0>), form factor (Horton 
    (1932) <doi:10.1029/TR013i001p00350>), basin elongation (Schum (1956) 
    <doi:10.1130/0016-7606(1956)67[597:EODSAS]2.0.CO;2>), lemniscate ratio 
    (Chorley et al; (1957) <doi:10.2475/ajs.255.2.138>), enamel-dentine distance
    (Guy et al. (2015) <doi:10.1371/journal.pone.0138802>; Thiery et al. (2017) 
    <doi:10.3389/fphys.2017.00524>), absolute crown strength (Schwartz et al. 
    (2020) <doi:10.1098/rsbl.2019.0671>), relief rate (Thiery et al. (2019)
    <doi:10.1002/ajpa.23916>) and area-relative curvature; draw cumulative
    profiles of a topographic variable; and map a variable over a 3d triangle 
    mesh.