[SciPy-Dev] More scipy.test() failures

[Warren Weckesser]

On Tue, Sep 6, 2011 at 2:14 PM, Ralf Gommers <ralf.gommers at googlemail.com>wrote:

>
>
> On Tue, Sep 6, 2011 at 8:35 PM, Nils Wagner <nwagner at iam.uni-stuttgart.de>wrote:
>
>> Hi all,
>>
>> can someone reproduce the following failures
>>
>> I can reproduce the first and third failures, but I haven't had time to
> look at them yet. If anyone wants to take a look, that would be helpful.
>


The third test (chi2_contingency) fails because special.chdtrc(0, 0.0)
returns nan.  It used to return 1.  I haven't checked when the behavior
changed.

The chi2_contingency function can be changed to handle this degenerate case
explicitly.

Warren



> The second one I don't see, but it looks like the test tolerance being
> slightly too high.
>
> Ralf
>
>
>
>
>> Nils
>>
>> >>> scipy.__version__
>> '0.10.0.dev7179'
>>
>> ======================================================================
>> FAIL: test_mio_utils.test_squeeze_element(False,)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/nose-0.11.2.dev-py2.6.egg/nose/case.py",
>> line 183, in runTest
>>     self.test(*self.arg)
>> AssertionError
>>
>> ======================================================================
>> FAIL: test_arpack.test_complex_nonsymmetric_modes(False,
>> <std-cmplx-nonsym>, 'F', 2, 'LM', None, None, <class
>> 'scipy.sparse.csr.csr_matrix'>)
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/nose-0.11.2.dev-py2.6.egg/nose/case.py",
>> line 183, in runTest
>>     self.test(*self.arg)
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/scipy/sparse/linalg/eigen/arpack/tests/test_arpack.py",
>> line 196, in eval_evec
>>     assert_allclose(LHS, RHS, rtol=_rtol[typ],
>> atol=_atol[typ], err_msg=err)
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/numpy/testing/utils.py",
>> line 1213, in assert_allclose
>>     verbose=verbose, header=header)
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/numpy/testing/utils.py",
>> line 677, in assert_array_compare
>>     raise AssertionError(msg)
>> AssertionError:
>> Not equal to tolerance rtol=0.000238419, atol=0.000238419
>> error for eigs:standard, typ=F, which=LM, sigma=None,
>> mattype=csr_matrix, OPpart=None, mode=normal
>> (mismatch 100.0%)
>>  x: array([[-0.15612537-0.34876961j,
>>  0.54372370+1.58556008j],
>>        [ 0.07264681-0.29588005j,
>>  0.79194915+1.30910718j],
>>        [ 0.18219496+0.68975669j,  0.85219419+1.5947448j
>> ],...
>>  y: array([[-0.15577540-0.34831554j,
>>  0.54372382+1.58555984j],
>>        [ 0.07204140-0.29578942j,
>>  0.79194933+1.30910718j],
>>        [ 0.18207264+0.69015396j,
>>  0.85219407+1.59474432j],...
>>
>> ======================================================================
>> FAIL: Some very simple tests for chi2_contingency.
>> ----------------------------------------------------------------------
>> Traceback (most recent call last):
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/nose-0.11.2.dev-py2.6.egg/nose/case.py",
>> line 183, in runTest
>>     self.test(*self.arg)
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/scipy/stats/tests/test_contingency.py",
>> line 67, in test_chi2_contingency_trival
>>     assert_equal(p, 1.0)
>>   File
>>
>> "/home/nwagner/local/lib64/python2.6/site-packages/numpy/testing/utils.py",
>> line 300, in assert_equal
>>     raise AssertionError(msg)
>> AssertionError:
>> Items are not equal:
>>  ACTUAL: nan
>>  DESIRED: 1.0
>>
>> ----------------------------------------------------------------------
>> Ran 5625 tests in 202.342s
>>
>> FAILED (KNOWNFAIL=12, SKIP=28, failures=3)
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>>
>
>
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