Olivier, the code you sent did so much magic and I'm definitely using that. What baffles me is that looping through the 12 arrays seem impossible. I have tried what you just sent but it won't just work. You could confirm this. Sent from my BlackBerry wireless device from MTN -----Original Message----- From: Olivier Delalleau <shish@keba.be> Sender: numpy-discussion-bounces@scipy.org Date: Tue, 20 Sep 2011 12:00:51 To: Discussion of Numerical Python<numpy-discussion@scipy.org> Reply-To: Discussion of Numerical Python <numpy-discussion@scipy.org> Subject: Re: [Numpy-discussion] Dealing with arrays _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion