v2.3.0

TL;DR: New filtrations module, that centralizes standard filtrations.

[Features]

• New multipers.filtrations module containing:
  • RipsLowersar, RipsCodensity
  • DelaunayLowerstar, DelaunayCodensity (from Delaunay Bifiltrations) this is a symlink to multipers.slicer.from_function_delaunay)
  • CoreDelaunay (Thanks @odinhg !) (from Core Bifiltration)
  • Cubical which is a symlink to multipers.slicer.from_bitmap
  • corresponding tests

Note that the interface of this module may change. We are also far from covering every possible multifiltrations here; please open an issue or a pull request if you have another one in mind to add it.

[Fixes]

• moved the tests folder, from .multipers/tests to./tests/ as this location was sometimes causing some issues.
• multicritical firep, scc and rivet exports
• plot issues with torch vs numpy tensors
• safeguards on the grid squeeze
• number of points in three_annulus was sometime incorrect (Thanks @odinhg )

[Optimizations]

• Rips complexes are now built with gudhi.SimplexTree.create_from_array, which can be significantly faster

[Documentation]

• Added a Filtrations sections