landgraph: Graphs and Covariance for Landscape Genetics
Shared, dependency-light primitives for landscape-genetic network
methods: a lightweight deme/landscape graph (vertex coordinates and an undirected
edge list) with constructors from coordinates; genetic covariance and distance
from biallelic or multiallelic data (the normalized-dosage covariance of Yang
et al. (2010) <doi:10.1038/ng.608>, and the multivariate covariance of Dyer and
Nason (2004) <doi:10.1111/j.1365-294X.2004.02177.x> built by the Gower (1966)
<doi:10.1093/biomet/53.3-4.325> double-centering); pairwise F_ST by the
estimator of Bhatia et al. (2013) <doi:10.1101/gr.154831.113>; and
antisymmetric per-edge directional covariate builders (the gradient of a scalar
potential, and the projection of a vector flow field). Used by 'terradish'
(symmetric resistance).
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