File formats¶
Persistence Diagram¶
Such a file, whose extension is usually .pers
, contains a list of
persistence intervals.
Lines starting with #
are ignored (comments).
Other lines might contain 2, 3 or 4 values (the number of values on each line must be the same for all lines):
[[field] dimension] birth death
Here is a simple sample file:
# Persistence diagram example
2 2.7 3.7
2 9.6 14.
# Some comments
3 34.2 34.974
4 3. inf
Other sample files can be found in the data/persistence_diagram folder.
Such files can be generated with
gudhi.SimplexTree.write_persistence_diagram()
, read with
gudhi.read_persistence_intervals_grouped_by_dimension()
, or
gudhi.read_persistence_intervals_in_dimension()
and displayed with
gudhi.plot_persistence_barcode()
or
gudhi.plot_persistence_diagram()
.