petls.Alpha

class petls.Alpha(filename=None, points=None, max_dim=3)

Alpha complex from a point cloud, using Gudhi’s AlphaComplex.

Attributes:

flipped

verbose

Methods

eigenpairs([dim, a, b, request_list, allpairs])	Compute the eigenvalues and eigenvectors of L_{dim}^{a,b} or for every tuple (dim, a, b) in request_list.
set_boundaries_filtrations(boundaries, ...)	If the boundaries and filtrations were not set in the constructor, set them here.
spectra([dim, a, b, request_list, allpairs])	Compute the eigenvalues of L_{dim}^{a,b} or for every tuple (dim, a, b) in request_list.

eigenvalues_summarize
filtration_list_to_spectra_request
get_L
get_all_filtrations
get_down
get_up
nonzero_spectra
print_boundaries
set_eigs_Algorithm
set_up_Algorithm
store_L
store_spectra
store_spectra_summary
time_to_csv

__init__(filename=None, points=None, max_dim=3)

Constructor for the Complex class.

Methods

__init__([filename, points, max_dim])	Constructor for the Complex class.
eigenpairs([dim, a, b, request_list, allpairs])	Compute the eigenvalues and eigenvectors of L_{dim}^{a,b} or for every tuple (dim, a, b) in request_list.
eigenvalues_summarize(eigenvalues)
filtration_list_to_spectra_request(...[, ...])
get_L(dim, a, b)
get_all_filtrations()
get_down(dim, a)
get_up(dim, a, b)
nonzero_spectra(dim, a, b[, PH_basis, ...])
print_boundaries()
set_boundaries_filtrations(boundaries, ...)	If the boundaries and filtrations were not set in the constructor, set them here.
set_eigs_Algorithm(eigs_Algorithm[, ...])
set_up_Algorithm(up_Algorithm)
spectra([dim, a, b, request_list, allpairs])	Compute the eigenvalues of L_{dim}^{a,b} or for every tuple (dim, a, b) in request_list.
store_L(dim, a, b, prefix)
store_spectra(spectra_list, file_prefix)
store_spectra_summary(spectra_list, file_prefix)
time_to_csv(filename)

Attributes

cpp_algorithms_list
flipped
verbose