[Numpy-discussion] nan result from np.linalg.lstsq()

Larry Paltrow larry.paltrow@gmail....
Mon Oct 29 04:01:53 CDT 2012


np.isnan(data) is True
>>> False


On Mon, Oct 29, 2012 at 1:50 AM, Pauli Virtanen <pav@iki.fi> wrote:

> Larry Paltrow <larry.paltrow <at> gmail.com> writes:
> > I'm having some trouble using the linalg.lstsq() function
> > with certain data and trying to understand why. It's
> > always returning nans when I feed it this numpy array of float64 data:
> >
> > data = df.close.values #coming from a pandas dataframe
> >
> > type(data)
> > >>> numpy.ndarray
>
> Maybe you have NaNs in the array? (i.e. np.isnan(data) is True)
>
> --
> Pauli Virtanen
>
>
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