[SciPy-dev] ValueError: Lack of convergence in obrientransform.

josef.pktd@gmai... josef.pktd@gmai...
Mon Dec 22 09:47:44 CST 2008


On Mon, Dec 22, 2008 at 9:24 AM, Nils Wagner
<nwagner@iam.uni-stuttgart.de> wrote:
>>>> scipy.__version__
> '0.7.0.dev5286'
>
>
> ======================================================================
> ERROR: Tests Obrien transform
> ----------------------------------------------------------------------
> Traceback (most recent call last):
>   File
> "/usr/local/lib64/python2.5/site-packages/scipy/stats/tests/test_mstats_basic.py",
> line 469, in test_obrientransform
>     assert_almost_equal(np.round(mstats.obrientransform(*args).T,4),
>   File
> "/usr/local/lib64/python2.5/site-packages/scipy/stats/mstats_basic.py",
> line 1732, in obrientransform
>     raise ValueError("Lack of convergence in
> obrientransform.")
> ValueError: Lack of convergence in obrientransform.
>

I don't see any changes in scipy.stats that could be related.
mstats.obrientransform only uses methods of
numpy.ma.core.MaskedArray. Which numpy version are you using?

Josef


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