On Wed, Jul 27, 2011 at 10:29:08PM -0500, Robert Love wrote:
To use quaternions I find I often need conversion to/from matrices and
to/from Euler angles. Will you add that functionality?
Yes, I intend to. Note that these conversions are already available in
the standalone (non-dtype)
Hi,
I'd like to kick off some discussion on general issues I've encountered
while developing the quaternion dtype (see other thread, and the code
at: https://github.com/martinling/numpy_quaternion)
The basic issue is that the attributes of ndarray cannot be adapted
to the dtype of a given array.
Hi again!
Am Donnerstag, 21. Juli 2011, 16:56:21 schrieb Hans Meine:
import numpy
class Test(numpy.ndarray):
pass
a1 = numpy.ndarray((1,))
a2 = Test((1,))
assert type(a1.min()) == type(a2.min()), \
%s != %s % (type(a1.min()), type(a2.min()))
#
Hi,
On Thu, Jul 28, 2011 at 7:58 AM, Hans Meine
me...@informatik.uni-hamburg.de wrote:
Hi again!
Am Donnerstag, 21. Juli 2011, 16:56:21 schrieb Hans Meine:
import numpy
class Test(numpy.ndarray):
pass
a1 = numpy.ndarray((1,))
a2 = Test((1,))
assert type(a1.min()) ==
On Thu, Jul 28, 2011 at 1:29 AM, Gael Varoquaux
gael.varoqu...@normalesup.org wrote:
On Wed, Jul 27, 2011 at 05:25:20PM -0600, Charles R Harris wrote:
Well, doc tests are just a losing proposition, no one should be using
them
for writing tests. It's not like this is a new discovery,
Hi,
On Thu, Jul 28, 2011 at 10:13 AM, Ralf Gommers
ralf.gomm...@googlemail.com wrote:
On Thu, Jul 28, 2011 at 1:29 AM, Gael Varoquaux
gael.varoqu...@normalesup.org wrote:
On Wed, Jul 27, 2011 at 05:25:20PM -0600, Charles R Harris wrote:
Well, doc tests are just a losing proposition, no
I have a different question about this than the rest of the thread. I'm
confused at why there isn't a programmatic way to create a datetime dtype,
other than by going through this special string-based mini-language. I guess
I generally think of string-based dtype descriptors as being a legacy
On Thu, Jul 28, 2011 at 10:19 AM, Matthew Brett matthew.br...@gmail.com wrote:
I don't think anyone suggested that doctests should replace unit
tests; it's a bit difficult to see why that discussion started.
The conversation started because array([True], dtype=bool) changed to
array([True],
Hi,
2011/7/28 Stéfan van der Walt ste...@sun.ac.za:
On Thu, Jul 28, 2011 at 10:19 AM, Matthew Brett matthew.br...@gmail.com
wrote:
I don't think anyone suggested that doctests should replace unit
tests; it's a bit difficult to see why that discussion started.
The conversation started
Hi!
In my quest for a bug-free numpy I have, I think, fixed ticket 1793.
https://github.com/numpy/numpy/pull/123
Enjoy - feedback welcome, of course.
Cheers,
Paul.
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I have a need to index my array(s) starting with a 1 instead of a 0.
The reason for this is to be consistent with the documentation of a
format I'm accessing. I know I can just '-1' from what the
documentation says, but that can get cumbersome.
Is there a magic flag I can pass to a numpy array
On Thu, Jul 28, 2011 at 1:48 PM, Matthew Brett matthew.br...@gmail.com wrote:
The thread was first about how to deal with the change, and second
I'm still curious to know of a technical solution with doctests.
Ideally, one would like to specify a set of rules that a line must
pass to know
Hi Jeremy
On Thu, Jul 28, 2011 at 3:19 PM, Jeremy Conlin jlcon...@gmail.com wrote:
I have a need to index my array(s) starting with a 1 instead of a 0.
The reason for this is to be consistent with the documentation of a
format I'm accessing. I know I can just '-1' from what the
documentation
Don't forget the everything-looks-like-a-nail approach: make all your
arrays one bigger than you need and ignore element zero.
Anne
On 7/28/11, Stéfan van der Walt ste...@sun.ac.za wrote:
Hi Jeremy
On Thu, Jul 28, 2011 at 3:19 PM, Jeremy Conlin jlcon...@gmail.com wrote:
I have a need to
On Thu, Jul 28, 2011 at 4:10 PM, Anne Archibald
aarch...@physics.mcgill.ca wrote:
Don't forget the everything-looks-like-a-nail approach: make all your
arrays one bigger than you need and ignore element zero.
Hehe, why didn't I think of that :)
I guess the kind of problem I struggle with more
Hi,
2011/7/28 Stéfan van der Walt ste...@sun.ac.za:
On Thu, Jul 28, 2011 at 1:48 PM, Matthew Brett matthew.br...@gmail.com
wrote:
The thread was first about how to deal with the change, and second
I'm still curious to know of a technical solution with doctests.
Ideally, one would like to
On 29.07.2011, at 1:19AM, Stéfan van der Walt wrote:
On Thu, Jul 28, 2011 at 4:10 PM, Anne Archibald
aarch...@physics.mcgill.ca wrote:
Don't forget the everything-looks-like-a-nail approach: make all your
arrays one bigger than you need and ignore element zero.
Hehe, why didn't I think of
On Thu, Jul 28, 2011 at 4:26 PM, Derek Homeier
de...@astro.physik.uni-goettingen.de wrote:
I guess the kind of problem I struggle with more frequently is books
written with summations over -m to +n. In those cases, it's often
convenient to use the mapping function, so that I can enter the
The can is open and the worms are everywhere, so:
The big problem with one-based indexing for numpy is interpretation.
In python indexing, -1 is the last element of the array, and ranges
have a specific meaning. In a hypothetical one-based indexing scheme,
would the last element be element 0? if
On 29.07.2011, at 1:38AM, Anne Archibald wrote:
The can is open and the worms are everywhere, so:
The big problem with one-based indexing for numpy is interpretation.
In python indexing, -1 is the last element of the array, and ranges
have a specific meaning. In a hypothetical one-based
On Jul 28, 2011, at 7:42 AM, Martin Ling wrote:
On Wed, Jul 27, 2011 at 10:29:08PM -0500, Robert Love wrote:
To use quaternions I find I often need conversion to/from matrices and
to/from Euler angles. Will you add that functionality?
Yes, I intend to. Note that these conversions are
On Thu, Jul 28, 2011 at 21:48, Robert Love rblove_li...@comcast.net wrote:
On Jul 28, 2011, at 7:42 AM, Martin Ling wrote:
On Wed, Jul 27, 2011 at 10:29:08PM -0500, Robert Love wrote:
To use quaternions I find I often need conversion to/from matrices and
to/from Euler angles. Will you add
2011/7/28 Stéfan van der Walt ste...@sun.ac.za:
On Thu, Jul 28, 2011 at 2:05 PM, Paul Anton Letnes
paul.anton.let...@gmail.com wrote:
In my quest for a bug-free numpy I have, I think, fixed ticket 1793.
https://github.com/numpy/numpy/pull/123
This brings up an interesting question. When
On Thu, Jul 28, 2011 at 8:48 PM, Robert Love rblove_li...@comcast.netwrote:
On Jul 28, 2011, at 7:42 AM, Martin Ling wrote:
On Wed, Jul 27, 2011 at 10:29:08PM -0500, Robert Love wrote:
To use quaternions I find I often need conversion to/from matrices and
to/from Euler angles. Will
On Thu, Jul 28, 2011 at 8:48 PM, Robert Love rblove_li...@comcast.netwrote:
On Jul 28, 2011, at 7:42 AM, Martin Ling wrote:
On Wed, Jul 27, 2011 at 10:29:08PM -0500, Robert Love wrote:
To use quaternions I find I often need conversion to/from matrices and
to/from Euler angles. Will
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