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analyze.py
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analyze.py
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#!/usr/bin/env python2
"""
Copyright 2018, 2019 Chris Chronopoulos
This file is part of jack-midi-timestamp.
jack-midi-timestamp is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation, either version 3 of the License, or (at your option) any later version.
jack-midi-timestamp is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
jack-midi-timestamp. If not, see <https://www.gnu.org/licenses/>.
"""
import numpy as np
import matplotlib.pyplot as plt
import sys
if len(sys.argv) > 1:
logfile = sys.argv[1]
else:
print 'Usage: %s <logfile>' % sys.argv[0]
sys.exit(1)
data = np.loadtxt(logfile)
diff = np.diff(data)
mean = np.mean(diff)
std = np.std(diff)
print 'mean = ', mean
print 'std = ', std
plt.hist(diff, bins=100)
plt.show()