[Numpy-discussion] array not appending

Prashant Saxena animator333@yahoo....
Thu Dec 18 04:56:05 CST 2008


ST = np.empty((), dtype=np.float32)
ST = np.append(ST, 10.0)

This works, is it proper way to do so?

One more prob

ST.size returns 2.

Why? I have added only one element.

Prashant




________________________________
From: Gael Varoquaux <gael.varoquaux@normalesup.org>
To: Discussion of Numerical Python <numpy-discussion@scipy.org>
Sent: Thursday, 18 December, 2008 4:20:49 PM
Subject: Re: [Numpy-discussion] array not appending

On Thu, Dec 18, 2008 at 04:19:20PM +0530, Prashant Saxena wrote:
>    How do I solve this?

If you want appending in place you have to use a python list. If you don't
need modification in place, np.append returns an array with the appended
number.

Gaël
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