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diff --git a/sampling_alg_lac2020/figures/power_level_distribution/plot_histogram.py b/sampling_alg_lac2020/figures/power_level_distribution/plot_histogram.py
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+++ b/sampling_alg_lac2020/figures/power_level_distribution/plot_histogram.py
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+#!/usr/bin/env python
+import numpy as np
+import matplotlib.mlab as mlab
+import matplotlib.pyplot as plt
+import sys
+
+if len(sys.argv) != 3:
+ print("Wrong number of arguments.")
+ print("USAGE: ./plot_histogram.py <input_file> <output_file>")
+ quit()
+
+input_file = sys.argv[1]
+output_file = sys.argv[2]
+
+f = open(input_file)
+X = [float(i) for i in f.readlines()]
+X.sort()
+
+# the histogram of the data
+n, bins, patches = plt.hist(X, facecolor='red')
+
+# add a 'best fit' line
+# y = mlab.normpdf( bins, mu, sigma)
+# l = plt.plot(bins, y, 'r--', linewidth=1)
+
+plt.xlabel('Power Level')
+plt.ylabel('Number of Samples')
+# plt.title(r'$\mathrm{Histogram\ of\ IQ:}\ \mu=100,\ \sigma=15$')
+# plt.axis([40, 160, 0, 0.03])
+
+# TODO: adapt for different drum kits!
+# plt.xlim(0,97)
+plt.grid(True)
+
+plt.savefig(output_file)