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diff --git a/examples/distance_matrix.py b/examples/distance_matrix.py
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+""" distance_matrix.py
+
+Simple example showing how to compute the isi distance matrix of a set of spike
+trains.
+
+Copyright 2014, Mario Mulansky <mario.mulansky@gmx.net>
+
+Distributed under the BSD License
+"""
+
+
+from __future__ import print_function
+
+import matplotlib.pyplot as plt
+
+import pyspike as spk
+
+# first load the data, interval ending time = 4000, start=0 (default)
+spike_trains = spk.load_spike_trains_from_txt("PySpike_testdata.txt", 4000)
+
+print(len(spike_trains))
+
+plt.figure()
+isi_distance = spk.isi_distance_matrix(spike_trains)
+plt.imshow(isi_distance, interpolation='none')
+plt.title("ISI-distance")
+
+plt.figure()
+spike_distance = spk.spike_distance_matrix(spike_trains, interval=(0, 1000))
+plt.imshow(spike_distance, interpolation='none')
+plt.title("SPIKE-distance, T=0-1000")
+
+plt.figure()
+spike_sync = spk.spike_sync_matrix(spike_trains, interval=(2000, 4000))
+plt.imshow(spike_sync, interpolation='none')
+plt.title("SPIKE-Sync, T=2000-4000")
+
+plt.show()