1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#!/usr/bin/env python
""" Test functions for maximum entropy module.
Author: Ed Schofield, 2003-2005
Copyright: Ed Schofield, 2003-2005
"""
import sys
from numpy.testing import *
from numpy import arange, add, array, dot, zeros, identity, log, exp, ones
set_package_path()
from scipy.maxentropy.maxentropy import *
restore_path()
import unittest
class test_maxentropy(NumpyTestCase):
"""Test whether logsumexp() function correctly handles large
inputs.
"""
def check_logsumexp(self, level=1):
a = arange(200)
desired = log(sum(exp(a)))
assert_almost_equal(logsumexp(a), desired)
# Now test with large numbers
b = [1000,1000]
desired = 1000.0 + log(2.0)
assert_almost_equal(logsumexp(b), desired)
n = 1000
b = ones(n)*10000
desired = 10000.0 + log(n)
assert_almost_equal(logsumexp(b), desired)
def check_simple(self, level=1):
# Write me!
pass
if __name__ == "__main__":
NumpyTest().run()
|
