[SciPy-user] Ubuntu Feisty Source Install

[Robert Kern]

Ryan Krauss wrote:
> I found another thread with loadmat issues that said to build from
> svn.  Here is the scipy.test() result after rebuilding numpy and scipy
> from svn.  Only 1 failure and a few warnings.  Any thoughts?:

> ======================================================================
> FAIL: check_normal (scipy.stats.tests.test_morestats.test_anderson)
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File "/usr/lib/python2.5/site-packages/scipy/stats/tests/test_morestats.py",
> line 51, in check_normal
>     assert_array_less(A, crit[-2:])
>   File "/usr/lib/python2.5/site-packages/numpy/testing/utils.py", line
> 235, in assert_array_less
>     header='Arrays are not less-ordered')
>   File "/usr/lib/python2.5/site-packages/numpy/testing/utils.py", line
> 215, in assert_array_compare
>     assert cond, msg
> AssertionError:
> Arrays are not less-ordered
> 
> (mismatch 100.0%)
>  x: array(1.0864174631371526)
>  y: array([ 0.858,  1.021])
> 
> ----------------------------------------------------------------------
> Ran 1628 tests in 3.440s

Does it fail repeatedly? Unfortunately, it is only a statistical test of a
statistical test, if you follow my drift. It is almost guaranteed to fail
eventually if you run it enough times.

Anyways, I've modified it to run deterministically now, with a chosen PRNG seed.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco