On 07.07.2011, at 7:16PM, Robert Pyle wrote:
> .............../Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/numpy/core/numeric.py:1922:
> RuntimeWarning: invalid value encountered in absolute
> return all(less_equal(absolute(x-y), atol + rtol * absolute(y)))
>
>
> Everything else completes with 3 KNOWNFAILs and 1 SKIP. This warning is not
> new to this release; I've seen it before but haven't tried tracking it down
> until today.
>
> It arises in allclose(). The comments state "If either array contains NaN,
> then False is returned." but no test for NaN is done, and NaNs are indeed
> what cause the warning.
>
> Inserting
>
> if any(isnan(x)) or any(isnan(y)):
> return False
>
> before current line number 1916 in numeric.py seems to fix it.
The same warning is still present in the current master, I just never paid
attention to it because the tests still pass (it does correctly identify NaNs
because they are not less_equal the tolerance), but of course this should be
properly fixed as you suggest.
Cheers,
Derek
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