Polish

Overlap/Analysis/plot_components.py

 #!/usr/bin/env python3
 
+"""This script plots markers on a map for the position of extrema and
+arrows between markers for edges in the graph. The color changes with
+the component of the graph.
+
+"""
+
 import itertools
 import sys
 

Overlap/Analysis/report_graph.py

 #!/usr/bin/env python3
 
-"""This script reads an edgelist. Note that the script loads the whole
-graph into memory, with networkx. For the global graph on 30 years,
-this requires about 13 GiB of main memory. The file e_overestim.txt
-has to be in the same directory as the edgelist file given as argument
-of the script.
+"""This script reads an edgelist and prints some information about the
+corresponding graph. Note that the script loads the whole graph into
+memory, with networkx. For the global graph on 30 years, this requires
+about 13 GiB of main memory. The file e_overestim.txt has to be in the
+same directory as the edgelist file given as argument of the script.
 
 """