This is a new submission to CRAN.
The {phutil} package is intended to be a low-level package for hosting persistence data. It is part of the TDAverse suite of packages, which are designed to provide a collection of packages for enabling machine learning and data science tasks using persistent homology.
The package currently exposes:
persistence
class) for hosting persistence data;data.frame,
tibble, list,
matrix,PHom and diagram
classes);bottleneck_distance()
and wasserstein_distance())
and from a sample of persistence diagrams in a pairwise manner (bottleneck_pairwise_distance()
and wasserstein_pairwise_distance()).Messages, warnings and errors are relayed to the user using the {rlang} package and the {cli} package which are both licensed under the MIT license and with no dependency trail.
Computation of distances is performed using the BSD-licensed Hera C++ library. The code interfacing R and C++ is generated by the header-only {cpp11} package which is MIT-licensed. Computation of pairwise distances is parallelized over the number of pairs using OpenMP.