Have a look at glumpy: http://code.google.com/p/glumpy/
It's quite simple and very fast for images (it's based on OpenGL/shaders).
Nicolas
On Jun 28, 2011, at 6:38 AM, Nadav Horesh wrote:
I have an application which generates and displays RGB images as rate of
several frames/seconds
Thanks very much!! you are right. It's becuase the extra semicolon in the
head row. I have no problems anymore.
I thank you for your time.
cheeers,
Chao
2011/6/28 Derek Homeier de...@astro.physik.uni-goettingen.de
Hi Chao,
by mistake did not reply to the list last time...
On 27.06.2011,
Hi,
On Mon, Jun 27, 2011 at 10:03 PM, Mark Wiebe mwwi...@gmail.com wrote:
On Mon, Jun 27, 2011 at 12:18 PM, Matthew Brett matthew.br...@gmail.com
...
That seems like a risky strategy to me, as the most likely outcome is
that people worried about memory will avoid masked arrays because they
Charles R Harris writes:
I think we may need some standard format for masked data on disk if we
don't go the NA value route.
As I see it, the mask array is just some metadata that is attached to
the dtype descriptor. I don't know how an ndarray is (un)pickled from
disk, but I imagine that each
I tried Root’s advice and with the get_data method and GTK (without Agg) I got
decent speed -- 30 fps (display speed, without the calculations overhead). The
combination of matplotlib and glumpy resulted in 88 fps.
I think I’ll have a solutionif glumpy lack of documentation will net get in
On Mon, Jun 27, 2011 at 2:03 PM, Mark Wiebe mwwi...@gmail.com wrote:
On Mon, Jun 27, 2011 at 12:18 PM, Matthew Brett matthew.br...@gmail.com
wrote:
You won't get complaints, you'll just lose a group of users, who will,
I suspect, stick to NaNs, unsatisfactory as they are.
This blade cuts
Hello,
I have a 380X5 matrix and when I am calculating pseudo-inverse of the matrix
using pinv(numpy.linalg) I get the following error message:
raise LinAlgError, 'SVD did not converge'
numpy.linalg.linalg.LinAlgError: SVD did not converge
I have looked in the list that it is a recurring issue
On Tue, Jun 28, 2011 at 9:56 AM, santhu kumar mesan...@gmail.com wrote:
Hello,
I have a 380X5 matrix and when I am calculating pseudo-inverse of the
matrix using pinv(numpy.linalg) I get the following error message:
raise LinAlgError, 'SVD did not converge'
numpy.linalg.linalg.LinAlgError:
Hi,
On Tue, 2011-06-28 at 10:56 -0500, santhu kumar wrote:
Hello,
I have a 380X5 matrix and when I am calculating pseudo-inverse of the
matrix using pinv(numpy.linalg) I get the following error message:
raise LinAlgError, 'SVD did not converge'
numpy.linalg.linalg.LinAlgError: SVD did
On Tue, Jun 28, 2011 at 9:06 AM, Nathaniel Smith n...@pobox.com wrote:
On Mon, Jun 27, 2011 at 2:03 PM, Mark Wiebe mwwi...@gmail.com wrote:
On Mon, Jun 27, 2011 at 12:18 PM, Matthew Brett matthew.br...@gmail.com
wrote:
You won't get complaints, you'll just lose a group of users, who
As with Travis, I have not had time to wade through the 150+ messages
on masked arrays, but I'd like to raise a concept I've mentioned in
the past that would enable a broader use if done slightly differently.
That is, the masked array problem is a subset of this more-general
problem. Please
On Tue, Jun 28, 2011 at 9:38 AM, Charles R Harris
charlesr.har...@gmail.com wrote:
Nathaniel, an implementation using masks will look *exactly* like an
implementation using na-dtypes from the user's point of view. Except that
taking a masked view of an unmasked array allows ignoring values
On Tue, Jun 28, 2011 at 10:50 AM, Joe Harrington j...@physics.ucf.edu wrote:
As with Travis, I have not had time to wade through the 150+ messages
on masked arrays, but I'd like to raise a concept I've mentioned in
the past that would enable a broader use if done slightly differently.
That
Hi,
On Tue, Jun 28, 2011 at 7:43 PM, Lou Pecora lou_boog2...@yahoo.com wrote:
--
*From:* santhu kumar mesan...@gmail.com
*To:* numpy-discussion@scipy.org
*Sent:* Tue, June 28, 2011 11:56:48 AM
*Subject:* [Numpy-discussion] SVD does not converge
Hello,
I have
On Tue, Jun 28, 2011 at 11:36 AM, eat e.antero.ta...@gmail.com wrote:
Hi,
On Tue, Jun 28, 2011 at 7:43 PM, Lou Pecora lou_boog2...@yahoo.comwrote:
--
*From:* santhu kumar mesan...@gmail.com
*To:* numpy-discussion@scipy.org
*Sent:* Tue, June 28, 2011 11:56:48
was unable to
find any solution. Can somebody please guide me on how to fix that issue?
Thanks
Santhosh
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Hello,
From: santhu kumar mesan...@gmail.com
After looking at the suggestions I have checked my matrix again and found
that the matrix was wrong.(Has some NAN's and other values which are wrong).
After correcting it it works fine.
Not to beat a dead horse, but here's an (ancient) related
On 06/28/2011 07:26 AM, Nathaniel Smith wrote:
On Tue, Jun 28, 2011 at 9:38 AM, Charles R Harris
charlesr.har...@gmail.com wrote:
Nathaniel, an implementation using masks will look *exactly* like an
implementation using na-dtypes from the user's point of view. Except that
taking a masked
On Tue, Jun 28, 2011 at 12:41 PM, Eric Firing efir...@hawaii.edu wrote:
I think you are exaggerating some of the differences associated with the
implementation, and ignoring one *key* difference: for integer types,
the masked implementation can handle the full numeric range of the type,
while
On Jun 28, 2011, at 9:41 PM, Eric Firing wrote:
One of the real frustrations of the present masked array is that there
is no savez/load support. I could roll my own by using a convention
like saving the mask of xxx as xxx__mask__, and then reversing the
process in a modified load; but I
All,
I'm not sure I understand some aspects of Mark's new proposal, sorry (blame the
lack of sleep).
I'm pretty excited with the idea of built-in NA like np.dtype(NA['float64']),
provided we can come with some shortcuts like np.nafloat64. I think that would
really take care of the missing data
Hi,
On Tue, Jun 28, 2011 at 5:38 PM, Charles R Harris
charlesr.har...@gmail.com wrote:
Nathaniel, an implementation using masks will look *exactly* like an
implementation using na-dtypes from the user's point of view. Except that
taking a masked view of an unmasked array allows ignoring values
Hi,
On Tue, Jun 28, 2011 at 8:41 PM, Eric Firing efir...@hawaii.edu wrote:
On 06/28/2011 07:26 AM, Nathaniel Smith wrote:
On Tue, Jun 28, 2011 at 9:38 AM, Charles R Harris
charlesr.har...@gmail.com wrote:
Nathaniel, an implementation using masks will look *exactly* like an
implementation
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smith n...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us missing data folks could just ignore this feature. But:
whatever we end up implementing is something that I will have to
explain over
On 6/28/11 5:20 PM, Matthew Brett wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smithn...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us missing data folks could just ignore this feature. But:
whatever we end up implementing is
Hi,
On Tue, Jun 28, 2011 at 11:40 PM, Jason Grout
jason-s...@creativetrax.com wrote:
On 6/28/11 5:20 PM, Matthew Brett wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smithn...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us
Hi,
On Wed, Jun 29, 2011 at 1:40 AM, Jason Grout jason-s...@creativetrax.comwrote:
On 6/28/11 5:20 PM, Matthew Brett wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smithn...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us
On Tue, Jun 28, 2011 at 10:06 AM, Nathaniel Smith n...@pobox.com wrote:
On Mon, Jun 27, 2011 at 2:03 PM, Mark Wiebe mwwi...@gmail.com wrote:
On Mon, Jun 27, 2011 at 12:18 PM, Matthew Brett matthew.br...@gmail.com
wrote:
You won't get complaints, you'll just lose a group of users, who
On Tue, Jun 28, 2011 at 2:41 PM, Eric Firing efir...@hawaii.edu wrote:
On 06/28/2011 07:26 AM, Nathaniel Smith wrote:
On Tue, Jun 28, 2011 at 9:38 AM, Charles R Harris
charlesr.har...@gmail.com wrote:
Nathaniel, an implementation using masks will look *exactly* like an
implementation
On Tue, Jun 28, 2011 at 3:45 PM, Pierre GM pgmdevl...@gmail.com wrote:
All,
I'm not sure I understand some aspects of Mark's new proposal, sorry (blame
the lack of sleep).
I'm pretty excited with the idea of built-in NA like
np.dtype(NA['float64']), provided we can come with some shortcuts
On Tue, Jun 28, 2011 at 5:20 PM, Matthew Brett matthew.br...@gmail.comwrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smith n...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us missing data folks could just ignore this feature.
On Tue, Jun 28, 2011 at 6:00 PM, Matthew Brett matthew.br...@gmail.comwrote:
Hi,
On Tue, Jun 28, 2011 at 11:40 PM, Jason Grout
jason-s...@creativetrax.com wrote:
On 6/28/11 5:20 PM, Matthew Brett wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smithn...@pobox.com wrote:
...
On Tue, Jun 28, 2011 at 4:37 PM, Mark Wiebe mwwi...@gmail.com wrote:
I've nearly finished this parameter, and decided to call it 'where' instead,
because it is operating like an SQL where clause. Here if neither a nor b
are masked array it will only modify those values of b where the 'where'
On Jun 29, 2011, at 1:37 AM, Mark Wiebe wrote:
On Tue, Jun 28, 2011 at 3:45 PM, Pierre GM pgmdevl...@gmail.com wrote:
...
I think that would really take care of the missing data part in a consistent
and non-ambiguous way.
However, I understand that if a choice would be made, this
On Jun 29, 2011, at 1:39 AM, Mark Wiebe wrote:
On Tue, Jun 28, 2011 at 5:20 PM, Matthew Brett matthew.br...@gmail.com
wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smith n...@pobox.com wrote:
...
(You might think, what difference does it make if you *can* unmask an
item? Us
On Tue, Jun 28, 2011 at 6:55 PM, Nathaniel Smith n...@pobox.com wrote:
On Tue, Jun 28, 2011 at 4:37 PM, Mark Wiebe mwwi...@gmail.com wrote:
I've nearly finished this parameter, and decided to call it 'where'
instead,
because it is operating like an SQL where clause. Here if neither a nor b
On Tue, Jun 28, 2011 at 6:56 PM, Pierre GM pgmdevl...@gmail.com wrote:
On Jun 29, 2011, at 1:37 AM, Mark Wiebe wrote:
On Tue, Jun 28, 2011 at 3:45 PM, Pierre GM pgmdevl...@gmail.com wrote:
...
I think that would really take care of the missing data part in a
consistent and
On Tue, Jun 28, 2011 at 6:57 PM, Pierre GM pgmdevl...@gmail.com wrote:
On Jun 29, 2011, at 1:39 AM, Mark Wiebe wrote:
On Tue, Jun 28, 2011 at 5:20 PM, Matthew Brett matthew.br...@gmail.com
wrote:
Hi,
On Tue, Jun 28, 2011 at 4:06 PM, Nathaniel Smith n...@pobox.com wrote:
...
(You
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