22 lines
869 B
Python
22 lines
869 B
Python
# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
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# Spack Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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from spack.package import *
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class RRann(RPackage):
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"""Fast Nearest Neighbour Search (Wraps ANN Library) Using L2 Metric.
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Finds the k nearest neighbours for every point in a given dataset in O(N
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log N) time using Arya and Mount's ANN library (v1.1.3). There is support
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for approximate as well as exact searches, fixed radius searches and 'bd'
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as well as 'kd' trees. The distance is computed using the L2 (Euclidean)
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metric. Please see package 'RANN.L1' for the same functionality using the
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L1 (Manhattan, taxicab) metric."""
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cran = "RANN"
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version("2.6.1", sha256="b299c3dfb7be17aa41e66eff5674fddd2992fb6dd3b10bc59ffbf0c401697182")
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