[Numpy-discussion] Type checking of arrays containing strings

[Arnar Flatberg]

On Fri, Jul 18, 2008 at 11:40 AM, Stéfan van der Walt <stefan at sun.ac.za>
wrote:

> 2008/7/18 Arnar Flatberg <arnar.flatberg at gmail.com>:
> > I need to check if my array (a) is of type `string`. That is, I dont know
> > the number of characters beforehand, so I cant do a.dtype == '|S*' (* =
> > (max) number of characters)
> > Looking at my options,  I see either a.dtype.kind == 'S' or a.dtype.type
> ==
> > np.string_, might be ok. Are these any of the preffered ways, or is there
> > some other way?
>
> Maybe
>
> np.issubdtype(x.dtype, str)

Yes, silly of me. I didnt look at the documentation (source) and tried
np.issubdtype(x, str) as my first try. That not working, I got lost. That
said, I think some other parameter names than arg1, arg2 would be nice for
an undocumented function .

Arnar
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/numpy-discussion/attachments/20080718/c4607f24/attachment.html>