natcpp0.2 package

Fast C++ Primitives for the 'NeuroAnatomy Toolbox'

c_coords21dindex

Convert physical coordinates to 1d indices into image array

c_EdgeListFromSegList

Turn a segment list into an edgelist suitable for constructing an ngra...

c_ijkpos

Convert physical coordinates to pixel coordinates

c_listlengths

A simple function to compute the lengths of the elements of an R list

c_ListofMatrixRows

Convert a matrix into list of row vectors

c_seglengths

Compute summed segment lengths or total cable

c_sub2ind

Find 1D index given n-dimensional indices

c_topntail

Find the first and last elements of all vectors in a list

natcpp-package

natcpp: Fast C++ Primitives for the 'NeuroAnatomy Toolbox'

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Fast functions implemented in C++ via 'Rcpp' to support the 'NeuroAnatomy Toolbox' ('nat') ecosystem. These functions provide large speed-ups for basic manipulation of neuronal skeletons over pure R functions found in the 'nat' package. The expectation is that end users will not use this package directly, but instead the 'nat' package will automatically use routines from this package when it is available to enable large performance gains.

  • Maintainer: Gregory Jefferis
  • License: GPL (>= 3)
  • Last published: 2025-10-14

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