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Home Page: https://appliedtopology.github.io/tda4j/
License: MIT License
TDA library for the JVM
Home Page: https://appliedtopology.github.io/tda4j/
License: MIT License
refer to Edelsbrunner and INTRODUCTION TO SIMPLICIAL COMPLEXES
Note: Full implementation is done when SortedMaps
is done.
Leverage Kotlin's stdlib kotlin.collections.Map
. to create SortedMap
. We will also use TDA4j kotlin
branch's Sets.kts
SortedSet
implementation.
It would be nice to have a collection of classes that basically just inherit good default choices of things from basically all classes in circulation, so that we might have, say, tda4j.matlab.BarcodeCollection
and tda4j.matlab.VietorisRipsStream
that do not actually require parametrizations and thus should work out of the box from Matlab.
I have done search/replace to change out of a edu.stanford
namespace into an org.appliedtopology
namespace. Nevertheless, I have not checked everything.
We still have the masterclass api.Plex4
containing interface functions built with Matlab in mind. This class should probably be renamed -- but doing so means updating ALL the Matlab files.
The current implementation of the Simplex
functionality has an error, whereby the following code fails to behave as expected:
val s = Simplex(1,2,3)
(s + 4).contains(4)
This is documented in the test suite, which now fails two different tests based on this: both
The boundary test fails because the construction of simplices includes using the AbstractSimplex.incl
method to add elements to the simplex object.
When one builds an ExplicitSimplexStream but forgets to call finalizeStream() before computing persistent homology, then sometimes the results are nonsense but no error message is thrown. It'd be nice the the user instead received an error that they can't compute homology before calling finalizeStream()
Causing problems creating build of project & merging with other branches
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