Showing 3 of total 3 results (show query)
jefferis
nabor:Wraps 'libnabo', a Fast K Nearest Neighbour Library for Low Dimensions
An R wrapper for 'libnabo', an exact or approximate k nearest neighbour library which is optimised for low dimensional spaces (e.g. 3D). 'libnabo' has speed and space advantages over the 'ANN' library wrapped by package 'RANN'. 'nabor' includes a knn function that is designed as a drop-in replacement for 'RANN' function nn2. In addition, objects which include the k-d tree search structure can be returned to speed up repeated queries of the same set of target points.
Maintained by Gregory Jefferis. Last updated 5 years ago.
55.5 match 22 stars 8.21 score 104 scripts 34 dependents
paulnorthrop
donut:Nearest Neighbour Search with Variables on a Torus
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.
Maintained by Paul J. Northrop. Last updated 2 years ago.
degreesdonutedgesknn-algorithmknn-searchnabornearestnearest-neighbornearest-neighbor-searchnearest-neighborsnearest-neighbour-algorithmnearest-neighboursneighborsperiodicityranntoruswrap
11.8 match 1 stars 4.18 score 5 scripts 1 dependents
michaeldorman
nngeo:k-Nearest Neighbor Join for Spatial Data
K-nearest neighbor search for projected and non-projected 'sf' spatial layers. Nearest neighbor search uses (1) C code from 'GeographicLib' for lon-lat point layers, (2) function knn() from package 'nabor' for projected point layers, or (3) function st_distance() from package 'sf' for line or polygon layers. The package also includes several other utility functions for spatial analysis.
Maintained by Michael Dorman. Last updated 11 months ago.
0.5 match 81 stars 9.70 score 600 scripts 6 dependents