From 025f24d720dfdfbe4e5dafb594e811bbf5ead2f7 Mon Sep 17 00:00:00 2001 From: glisse Date: Wed, 24 Oct 2018 14:40:49 +0000 Subject: True interleaving distance for the sparse Rips. git-svn-id: svn+ssh://scm.gforge.inria.fr/svnroot/gudhi/trunk@3964 636b058d-ea47-450e-bf9e-a15bfbe3eedb Former-commit-id: 6c342750c0ea2e7d48e8c3fc9cc2a4d04f8b379b --- src/Rips_complex/utilities/ripscomplex.md | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/Rips_complex') diff --git a/src/Rips_complex/utilities/ripscomplex.md b/src/Rips_complex/utilities/ripscomplex.md index 6df49310..108cdd50 100644 --- a/src/Rips_complex/utilities/ripscomplex.md +++ b/src/Rips_complex/utilities/ripscomplex.md @@ -85,7 +85,7 @@ properly, this is a known issue. ## sparse_rips_persistence ## This program computes the persistent homology with coefficient field *Z/pZ* -of a sparse (1+epsilon)-approximation of the Rips complex defined on a set of input Euclidean points. The output diagram contains one bar per line, written with the convention: +of a sparse (1+epsilon)/(1-epsilon)-approximation of the Rips complex defined on a set of input Euclidean points. The output diagram contains one bar per line, written with the convention: `p dim birth death` @@ -99,7 +99,7 @@ where `dim` is the dimension of the homological feature, `birth` and `death` are * `-h [ --help ]` Produce help message * `-o [ --output-file ]` Name of file in which the persistence diagram is written. Default print in standard output. -* `-e [ --approximation ]` (default = .5) Epsilon, where the sparse Rips complex is a (1+epsilon)-approximation of the Rips complex. +* `-e [ --approximation ]` (default = .5) Epsilon, where the sparse Rips complex is a (1+epsilon)/(1-epsilon)-approximation of the Rips complex. * `-d [ --cpx-dimension ]` (default = 1) Maximal dimension of the Rips complex we want to compute. * `-p [ --field-charac ]` (default = 11) Characteristic p of the coefficient field Z/pZ for computing homology. * `-m [ --min-persistence ]` (default = 0) Minimal lifetime of homology feature to be recorded. Enter a negative value to see zero length intervals. -- cgit v1.2.3