[Numpy-discussion] numpy, matplotlib and masked arrays

Peter Isaac Peter.Isaac@monash....
Sat Jul 10 05:11:36 CDT 2010

Hi Pauli,

Thanks for that.  The script does not work in either EPD-6.1-1 or
EPD-6.2-2 (the current release, see original post) on Ubuntu, so not
supporting EPD-6.1-1 doesn't solve the problem unfortunately.  However,
your test suggests that it is not simply the change from numpy 1.3.0 to
1.4.0.  This leaves either the EPD or the combination of numpy
1.4.0/matplotlib 0.99.3 on Ubuntu.

I've never tried installing from the source, maybe that's where it's


----- Original Message -----
From: Pauli Virtanen <pav@iki.fi>
Date: Saturday, July 10, 2010 7:03 pm
Subject: Re: [Numpy-discussion] numpy, matplotlib and masked arrays
To: numpy-discussion@scipy.org

> Sat, 10 Jul 2010 11:03:47 +1000, Peter Isaac wrote:
> > I'm not sure if this is a problem with numpy, matplotlib, EPD or 
> me but
> > here goes.  The general problem is that either matplotlib has 
> stopped> plotting masked arrays correctly or numpy has changed the 
> way masked
> > arrays are presented.  Or there is something strange with the 
> Enthought> Python Distribution or me.  Many would agree with the 
> latter ...
> [clip]
> > Since the matplotlib version is the same for the repository Python
> > installation and the EPD-6.1-1 installation and the script works 
> in the
> > first but not the second, it suggests the problem is not just
> > matplotlib.  That seems to leave the numpy version change (from 
> 1.3 to
> > 1.4) or something in the EPD.  Or me.  
> > Note that EPD-6.2-2 works fine with this script on WinXP.
> It works fine for me with Numpy 1.4.0 and matplotlib, on 
> Ubuntu. 
> So it seems your problem is localised on the older EPD-6.1-1.
> The question is: do you need to support this older version of EPD 
> at all? 
> The problem does not appear to be that matplotlib has stopped 
> plotting 
> masked arrays properly, or that something crucial has changed in 
> Numpy.
> -- 
> Pauli Virtanen
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