From 6279ac91dd7e2d3206e8a380d38cb2e5d503e9dc Mon Sep 17 00:00:00 2001
From: ROUVREAU Vincent <vincent.rouvreau@inria.fr>
Date: Tue, 8 Dec 2020 17:54:46 +0100
Subject: Fix #388 for the tests to pass

---
 src/python/gudhi/simplex_tree.pyx | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/python/gudhi')

diff --git a/src/python/gudhi/simplex_tree.pyx b/src/python/gudhi/simplex_tree.pyx
index cdd2e87b..7d6ab89a 100644
--- a/src/python/gudhi/simplex_tree.pyx
+++ b/src/python/gudhi/simplex_tree.pyx
@@ -627,6 +627,9 @@ cdef class SimplexTree:
 
         :param nb_iterations: The number of edge collapse iterations to perform. Default is 1.
         :type nb_iterations: int
+
+        :note: collapse_edges function requires `Eigen <installation.html#eigen>`_ >= 3.1.0, otherwise no action is
+        performed.
         """
         # Backup old pointer
         cdef Simplex_tree_interface_full_featured* ptr = self.get_ptr()
-- 
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