1 files changed, 4 insertions, 0 deletions

diff --git a/ot/plot.py b/ot/plot.py
index ce5444e..d172c90 100644
--- a/ot/plot.py
+++ b/ot/plot.py
@@ -1,3 +1,7 @@
+"""
+Functions for plotting OT matrices
+"""
+
 
 import numpy as np
 import matplotlib.pylab as pl