[SciPy-user] nan bug in distributions.norm.cdf

Christopher Fonnesbeck fonnesbeck.mailing.lists@gmail....
Thu Feb 22 14:17:57 CST 2007


On 2/22/07, Bryan Van de Ven <bryanv@enthought.com> wrote:
>
> I just tried this on OSX (Intel MacBook, Darwin) and I don't see the
> problem:
>
> In [1]: from scipy.stats import distributions as d
>
> In [2]: d.norm.cdf(-0.73646593092)
> Out[2]: array(0.23072359685139249)
>
> In [3]: import scipy
>
> In [4]: scipy.__version__
> Out[4]: '0.5.3.dev2409'
>
> What platform/version are you using?



In [61]: scipy.__version__
Out[61]: '0.5.3.dev2095'

on PPC. It seems to occur every so often for a variety of inoccuous-looking
values. I will build anew from a more recent svn update and see if the
problem goes away.

cf
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