neighborsToVectors

<p>A `[K,N]` matrix of indices of the nearest neighbors of each vertex. 0-indexed.</p>

<p>In the returned list, the nodes indexed by `j` are the identified nearest neighbors of the nodes indexed by `i`.
In other words, if `i = c(0,0,0,1,1,1)` and `j = c(1,2,3,2,3,4)`, then nodes `1, 2 &amp; 3` are nearest neighbors of node 0,
but node 0 is not a nearest neighbor of node 1.</p>

Implements the largeVis algorithm (see Tang, et al. (2016)  <DOI:10.1145/2872427.2883041>) for visualizing very large high-dimensional datasets. Also very fast search for approximate nearest neighbors; outlier detection; and optimized implementations of the HDBSCAN*, DBSCAN and OPTICS clustering algorithms; plotting functions for visualizing the above.

ORPHANED

neighborsToVectors: A utility function to convert a k-NN graph to a pair of 0-indexed vectors of indices.

Description

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