[Numpy-discussion] How to distinguish between number and string dypes

[Francesc Alted]

A Thursday 27 May 2010 05:52:22 Vincent Davis escrigué:
> How do I determine if an array's (or column in a structured array) dtype is
> a number or a string. I see how to determine the actual dtype but all I
>  want to know is if it is a string or a number.

I suppose that the `.kind` attribute of dtype would help you:

In [2]: s = np.dtype("S3")

In [4]: s.kind
Out[4]: 'S'

In [5]: i = np.dtype("i4")

In [6]: i.kind
Out[6]: 'i'

In [7]: f = np.dtype("f8")

In [8]: f.kind
Out[8]: 'f'

-- 
Francesc Alted