]])
[~]
|26 samples = np.random.multivariate_normal(means, cov, 1)
[~]
|27 cov
array([[ 100., 221.35943621],
[ 221.35943621, 1000.]])
[~]
|28 np.cov(samples.T)
array([[ 101.16844481, 222.00301056],
[ 222.00301056, 1001.58403922]])
--
Robert Kern
I have come
is in your
getx() and gety() methods. If so, then I think you are on the right
track. If you still have problems, then we might need to see some of
the problematic data and results.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible
,
but it may be more appropriate.
No, you do want to compute the interpolated values at the boundaries
of the new bins. Then differencing the values at the boundaries will
give you the correct values for the mass between the bounds.
--
Robert Kern
I have come to believe that the whole world
inheritance tree. On platforms where the Python int type is 32-bit,
numpy.int32 will include it instead.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth
algorithm. It's just work, as you know given your
contributions to other project.
Actually, last time I suggested it, it was brought up that the online
algorithms can be worse numerically. I'll try to find the thread.
--
Robert Kern
I have come to believe that the whole world is an enigma
that since the cost of maintaining the build
configuration for all of those different backends was so high. It's
worth noting that numpy.fft is already using a C translation of
FFTPACK. I'm not sure what the differences are between this
translation and Martin's.
--
Robert Kern
I have come to believe
these
routines with functions signature-compatible with those in
numpy.linalg.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
a hierarchical object will all of the parameters as attributes.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
.view(dt). The same kind of checking goes on in both places.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
interpreters for
extension modules. Many extension modules happen to work in this
environment, but numpy is not one of them. We have some global state
that we need to keep, and this gets interfered with in a multiple
interpreter environment.
--
Robert Kern
I have come to believe that the whole world
On Fri, Dec 9, 2011 at 11:00, Yang Zhang yanghates...@gmail.com wrote:
Thanks for the clarification. Alas. So is there no simple workaround
to making numpy work in environments such as Jepp?
I don't think so, no.
--
Robert Kern
I have come to believe that the whole world is an enigma
On Fri, Dec 9, 2011 at 13:18, Pierre Haessig pierre.haes...@crans.org wrote:
Le 09/12/2011 09:31, Robert Kern a écrit :
We have some global state
that we need to keep, and this gets interfered with in a multiple
interpreter environment.
I recently got interested in multiprocessing computation
, axis=0)
[~]
|5 y[i, np.arange(y.shape[1])]
array([0, 0, 0, 0, 0])
[~]
|6 y[np.argmin(y, axis=0), np.arange(y.shape[1])]
array([0, 0, 0, 0, 0])
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret
if it
causes bad interactions with the garbage collector, say (though hiding
information from the GC seems like a suboptimal approach).
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had
can *mostly* tell from
context whether to resolve NPY.whatever from either the C side or
the Python side, but sometimes it's ambiguous. It's more often
ambiguous to the human reader, too, so I try to be explicit about it.
I don't really know why the tutorials do it the confusing way.
--
Robert
if
you think the discovered configuration is incorrect somehow. A
failure here only means that your system does not provide what is
being tested for.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret
is obeyed. This
is a useful domain that is used internally in numpy.
Is this the problem that you found?
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth
that you can.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
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() and
np.random.RandomState.get_state() and their associated setter
functions. You really just need to reformat the information to be
acceptable to the other.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had
On Fri, Dec 30, 2011 at 18:57, Andreas Kloeckner
li...@informa.tiker.net wrote:
Hi Robert,
On Tue, 27 Dec 2011 10:17:41 +, Robert Kern robert.k...@gmail.com wrote:
On Tue, Dec 27, 2011 at 01:22, Andreas Kloeckner
li...@informa.tiker.net wrote:
Hi all,
Two questions:
- Are dtypes
dumped)
Can you provide an example that replicates the crash? Since it looks
like you have a core dump handy, can you get a gdb backtrace to show
us where the crash is? Platform details would also be handy.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
On Fri, Jan 13, 2012 at 21:42, Sturla Molden stu...@molden.no wrote:
Den 13.01.2012 22:24, skrev Robert Kern:
Do these systems have a ramdisk capability?
I assume you have seen this as well :)
http://www.cs.uoregon.edu/Research/paracomp/papers/iccs11/iccs_paper_final.pdf
I hadn't, actually
this on Mac OS X
with QuickTime support. Is this the best bet?
I've had luck with pyffmpeg, though I haven't tried QuickTime .mov files:
http://code.google.com/p/pyffmpeg/
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own
On Tue, Jan 17, 2012 at 05:11, Andreas Kloeckner
li...@informa.tiker.net wrote:
Hi Robert,
On Fri, 30 Dec 2011 20:05:14 +, Robert Kern robert.k...@gmail.com wrote:
On Fri, Dec 30, 2011 at 18:57, Andreas Kloeckner
li...@informa.tiker.net wrote:
Hi Robert,
On Tue, 27 Dec 2011 10:17:41
On Wed, Jan 18, 2012 at 10:19, Peter
numpy-discuss...@maubp.freeserve.co.uk wrote:
Sending this again (sorry Robert, this will be the second time
for you) since I sent from a non-subscribed email address the
first time.
On Sun, Jan 15, 2012 at 7:12 PM, Robert Kern wrote:
On Sun, Jan 15, 2012
the backtrace where your code starts to
verify if this looks to be the case.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
, rather than the associated datatype descriptor - I assume I
want to pay attention to the (self=0x117e0e850) in this line, and that
is the address of the array I am mishandling?
#1 0x000102897fc4 in array_dealloc (self=0x117e0e850) at
arrayobject.c:271
Yes.
--
Robert Kern
I have come
, please, fix whatever you can.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
___
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, what are you demonstrating there?
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
___
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On Tue, Jan 24, 2012 at 09:19, Sturla Molden stu...@molden.no wrote:
On 24.01.2012 10:16, Robert Kern wrote:
I'm sorry, what are you demonstrating there?
Both npy_intp and C long are used for sizes and indexing.
Ah, yes. I think Travis added the multiiter code to cont1_array(),
which does
()
[~/scratch]
|41 p
array([2, 3, 5, 4, 6, 1, 0])
[~/scratch]
|42 ps
array([6, 5, 0, 1, 3, 2, 4])
[~/scratch]
|43 ps[loi]
array([5, 2, 4])
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret
,
None) in the same way. Usually, it's a bad idea to conflate the three.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
', '|S40'), ('start', 'f8'), ('stop', 'f8'),
('mode', '|S10')])
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
. asarray()
and array() can't do it in general because they need to autodiscover
the shape and dtype all at the same time.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had
object genexpr at 0xdc24a08, dtype=object)
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
On Tue, Jan 31, 2012 at 15:35, Benjamin Root ben.r...@ou.edu wrote:
On Tue, Jan 31, 2012 at 9:18 AM, Robert Kern robert.k...@gmail.com wrote:
On Tue, Jan 31, 2012 at 15:13, Benjamin Root ben.r...@ou.edu wrote:
Is np.all() using np.array() or np.asanyarray()? If the latter, I would
additional feature of np.asanyarray() is that is does not convert
ndarray subclasses like matrix to ndarray objects. np.asanyarray()
does not accept more types of objects than np.asarray().
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made
at least.
I would rather we deprecate the all() and any() functions in favor of
the alltrue() and sometrue() aliases that date back to Numeric.
Renaming them to match the builtin names was a mistake.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma
.
That would be a useful change.
We could start with a warning. See how many people kvetch about it. I
don't like removing long-standing, documented features based on
suspicions that their user base is small. Our suspicions and
intuitions about such things aren't worth much.
--
Robert Kern
I have come
to go through these curves to find
the locations of self-intersection and remove the parts of the
segments and arcs that are too close to the reference curve. This is
tricky to do, but the formulae for segment-segment, segment-arc, and
arc-arc intersection can be found online.
--
Robert Kern
I have
Numpy-using operations.
http://docs.scipy.org/doc/numpy/reference/c-api.array.html#import_array
Rather, it must be called once in the initialization routine of each
extension module that uses numpy.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma
has
repetitions. Each one of these copies gets incremented by 1, then the
__setitem__() will apply each of those in turn to the appropriate cell
in hist, each one simply overwriting the previous one.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma
it
up into a utility function, it works great.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
space,
but are otherwise multivariate-normally-distributed in that subspace.
I'm not too attached to the semantics. We should check that the
Cholesky decomposition is stable before switching, though. The
eigenvalue algorithm probably suffers from instability just as much as
the SVD one.
--
Robert
On Thu, Feb 16, 2012 at 17:07, josef.p...@gmail.com wrote:
cholesky is also deterministic in my runs
We will need to check a variety of builds with different LAPACK
libraries and also different matrix sizes to be sure. Alas!
--
Robert Kern
I have come to believe that the whole world
they manage to do this is by scrupulously avoiding
exceptions even in the internal, never-touches-C zone.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth
was being discussed was putting the core in C and
using Cython to wrap it was simply a non-sequitur. Discussion of
alternatives is fine. You weren't doing that.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt
On Sat, Feb 18, 2012 at 22:06, Matthew Brett matthew.br...@gmail.com wrote:
Hi,
On Sat, Feb 18, 2012 at 2:03 PM, Robert Kern robert.k...@gmail.com wrote:
On Sat, Feb 18, 2012 at 21:51, Matthew Brett matthew.br...@gmail.com wrote:
On Sat, Feb 18, 2012 at 1:40 PM, Charles R Harris
charlesr.har
On Sat, Feb 18, 2012 at 22:29, Matthew Brett matthew.br...@gmail.com wrote:
Hi,
On Sat, Feb 18, 2012 at 2:20 PM, Robert Kern robert.k...@gmail.com wrote:
On Sat, Feb 18, 2012 at 22:06, Matthew Brett matthew.br...@gmail.com wrote:
Hi,
On Sat, Feb 18, 2012 at 2:03 PM, Robert Kern robert.k
something that is widely used enough as a
building block for other things.
--
Robert Kern
I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth.
-- Umberto Eco
in Python, this is _not good_.
But why, oh why, are people storing big data in CSV?
Because everyone can read it. It's not so much storage as transmission.
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' if they are big-endian.
Other chunks are 32bit integers how do I get these chunks into a numpy
array of int32?
data[start:end].view(np.int32)
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or not an array is a view?
Your original intuition was correct. It's just that sometimes an
operation will make a copy of the input data, but then make a view on
that copy. The output object is a view, just not a view on the input
object.
--
Robert Kern
of the appropriate length and dtype). Then pulling out all of
the 'x' field values will only touch a smaller fraction of the file.
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to do so?
As a general design principle, adding a boolean flag that changes the
return type is worse than making a new function.
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On Sat, Mar 3, 2012 at 14:31, Ralf Gommers ralf.gomm...@googlemail.com wrote:
On Sat, Mar 3, 2012 at 3:05 PM, Robert Kern robert.k...@gmail.com wrote:
On Sat, Mar 3, 2012 at 13:59, Ralf Gommers ralf.gomm...@googlemail.com
wrote:
On Thu, Mar 1, 2012 at 11:44 PM, Joe Kington jking
On Sat, Mar 3, 2012 at 15:22, Benjamin Root ben.r...@ou.edu wrote:
On Saturday, March 3, 2012, Robert Kern robert.k...@gmail.com wrote:
On Sat, Mar 3, 2012 at 14:31, Ralf Gommers ralf.gomm...@googlemail.com
wrote:
On Sat, Mar 3, 2012 at 3:05 PM, Robert Kern robert.k...@gmail.com
wrote
On Sat, Mar 3, 2012 at 14:34, Robert Kern robert.k...@gmail.com wrote:
On Sat, Mar 3, 2012 at 14:31, Ralf Gommers ralf.gomm...@googlemail.com
wrote:
Because this is also bad:
np.TAB
Display all 561 possibilities? (y or n)
Not as bad as overloading np.allclose(x,y,return_array=True
On Sat, Mar 3, 2012 at 15:51, Olivier Delalleau sh...@keba.be wrote:
Le 3 mars 2012 10:27, Robert Kern robert.k...@gmail.com a écrit :
On Sat, Mar 3, 2012 at 14:34, Robert Kern robert.k...@gmail.com wrote:
On Sat, Mar 3, 2012 at 14:31, Ralf Gommers ralf.gomm...@googlemail.com
wrote
On Sat, Mar 3, 2012 at 16:06, Olivier Delalleau sh...@keba.be wrote:
Le 3 mars 2012 11:03, Robert Kern robert.k...@gmail.com a écrit :
On Sat, Mar 3, 2012 at 15:51, Olivier Delalleau sh...@keba.be wrote:
Le 3 mars 2012 10:27, Robert Kern robert.k...@gmail.com a écrit :
On Sat, Mar 3, 2012
.
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On Tue, Mar 6, 2012 at 18:25, Travis Oliphant tra...@continuum.io wrote:
Why do we want to return a single string char instead of an int?
I suspect just to ensure that any provided value fits in the range
0..255. But that's easily done explicitly.
--
Robert Kern
=='int32'?
this and
a.dtype=='i4'
a.dtype==np.int32
all work. For a more general check (e.g. if it is any type of integer), you
can do
np.issubclass_(a.dtype.type, np.integer)
I don't recommend using that. Use np.issubdtype(a.dtype, np.integer) instead.
--
Robert Kern
this is what is envisioned here:
typedef struct {
PyObject_HEAD
char *b_ptr;
} _cfuncptr_object;
Why not just use PyCapsules?
http://docs.python.org/release/2.7/c-api/capsule.html
--
Robert Kern
'
Any hints about a regression I can check for? Or perhaps I missed an api
change for specifying datetime dtypes?
Judging from the error message, it looks like an intentional API change.
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, sorry.
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is left as an exercise for the reader.
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On Thu, May 3, 2012 at 2:50 PM, Robert Elsner ml...@re-factory.de wrote:
Am 03.05.2012 15:45, schrieb Robert Kern:
On Thu, May 3, 2012 at 2:24 PM, Robert Elsner ml...@re-factory.de wrote:
Hello Everybody,
is there any news on the status of np.bincount with respect to big
numbers? It seems I
the setup.py manages to import. So if you are using virtualenv,
just make sure that the virtualenv is activated and python refers to
the virtualenv's python executable.
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http
/.
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On Wed, May 16, 2012 at 4:35 PM, Nathaniel Smith n...@pobox.com wrote:
On Wed, May 16, 2012 at 4:24 PM, Robert Kern robert.k...@gmail.com wrote:
On Wed, May 16, 2012 at 4:21 PM, Nathaniel Smith n...@pobox.com wrote:
I built some pristine python 2.7 installs from scratch (no virtualenv
for this style of
polymorphism at this level is even rarer.
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mostly in true end-user
scenarios, e.g. genfromtxt(). But there are many other cases where we
should continue to use DeprecationWarning, e.g. _array2string(). But
on the whole, I would just leave the DeprecationWarnings as they are.
--
Robert Kern
On Tue, May 22, 2012 at 11:14 AM, Dag Sverre Seljebotn
d.s.seljeb...@astro.uio.no wrote:
On 05/22/2012 12:06 PM, Robert Kern wrote:
On Tue, May 22, 2012 at 9:27 AM, Nathaniel Smithn...@pobox.com wrote:
So maybe we should change all our DeprecationWarnings into
FutureWarnings (or at least
On Tue, May 22, 2012 at 2:45 PM, Nathaniel Smith n...@pobox.com wrote:
On Tue, May 22, 2012 at 11:06 AM, Robert Kern robert.k...@gmail.com wrote:
On Tue, May 22, 2012 at 9:27 AM, Nathaniel Smith n...@pobox.com wrote:
So starting in Python 2.7 and 3.2, the Python developers have made
)
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must iterate manually.
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-stride solution can be found in
an open source C++ global array code, IIRC. Double-hmmm...)
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On Thu, May 24, 2012 at 5:52 PM, Robert Kern robert.k...@gmail.com wrote:
(Hmm, now that I think about it, the edge cases are when the strides
are 0 or negative. 0-stride axes can simply be removed, and I think we
should be able to work back to a first item and flip the sign on the
negative
On Fri, May 25, 2012 at 3:55 PM, Nathaniel Smith n...@pobox.com wrote:
On May 25, 2012 2:21 PM, Robert Kern robert.k...@gmail.com wrote:
On Thu, May 24, 2012 at 5:52 PM, Robert Kern robert.k...@gmail.com wrote:
(Hmm, now that I think about it, the edge cases are when the strides
are 0
On Fri, May 25, 2012 at 3:55 PM, Nathaniel Smith n...@pobox.com wrote:
On May 25, 2012 2:21 PM, Robert Kern robert.k...@gmail.com wrote:
On Thu, May 24, 2012 at 5:52 PM, Robert Kern robert.k...@gmail.com wrote:
(Hmm, now that I think about it, the edge cases are when the strides
are 0
, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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, u/5 ==
13))
reduce(np.logical_and, args)
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be desirable for this to return
[8, 9, 0, 1]
Unfortunately, this would be inconsistent with Python semantics:
[~]
|1 u = range(10)
[~]
|2 u[-2:2]
[]
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On Wed, Jun 20, 2012 at 3:58 PM, Neal Becker ndbeck...@gmail.com wrote:
Maybe I'm being slow, but is there any convenient function to calculate,
for 2 vectors:
\sum_i \sum_j x_i y_j
(I had a matrix once, but it vanished without a trace)
np.multiply.outer(x, y).sum()
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Robert Kern
On Thu, Jun 21, 2012 at 7:33 PM, eat e.antero.ta...@gmail.com wrote:
Heh,
On Thu, Jun 21, 2012 at 6:03 PM, Robert Kern robert.k...@gmail.com wrote:
On Thu, Jun 21, 2012 at 3:59 PM, bob tnur bobtnu...@gmail.com wrote:
Hi all numpy fun;)
This question is already posted in stackoverflow
, which it is not when I get the ndarray from a pickle.
That is not the way to check if an ndarray owns its data. Instead,
check a.flags['OWNDATA']
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tab-completion setup I have for my regular python terminal. Of course, in
the grand scheme of things, that really isn't all that important, I don't
think.
We used to do it for scipy. It did interfere with tab completion. It
did drive many people nuts.
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?
You need special handling for NaTs to be consistent with how we deal
with NaNs in floats.
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]: b[slice(1)]
Out[26]: array([1])
In [27]: b[slice(4)]
Out[27]: array([1, 2, 3, 4])
In [28]: b[slice(None,4)]
Out[28]: array([1, 2, 3, 4])
so slice(4) is actually slice(None,4), how can I exactly want retrieve a[4]
using slice object?
You don't. You use 4.
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Robert Kern
') for a[1:3,:,4] ect.
I am very close now.
[~]
|1 from numpy import index_exp
[~]
|2 index_exp[1:3,:,2:4]
(slice(1, 3, None), slice(None, None, None), slice(2, 4, None))
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http
never work, but python setupegg.py
bdist_egg should.
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separately is preferred.
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to have the same
shape as `condition`
In the example you gave, x was a scalar.
net.max() returns an array:
print type(net.max())
type 'numpy.float32'
No, that's a scalar. The type would be numpy.ndarray if it were an array.
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with this
descr. I feel your pain, Geoff, and I apologize that my lax
specification led you down this path, but I think you need to fix your
code anyways.
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On Thu, Aug 2, 2012 at 11:41 PM, Geoffrey Irving irv...@naml.us wrote:
On Thu, Aug 2, 2012 at 1:26 PM, Robert Kern robert.k...@gmail.com wrote:
On Thu, Aug 2, 2012 at 8:46 PM, Geoffrey Irving irv...@naml.us wrote:
Hello,
The attached .npy file was written from custom C++ code. It loads
fine
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On Wed, Aug 8, 2012 at 10:34 AM, David Cournapeau courn...@gmail.com wrote:
On Wed, Aug 8, 2012 at 12:55 AM, Nathaniel Smith n...@pobox.com wrote:
On Mon, Aug 6, 2012 at 8:31 PM, Robert Kern robert.k...@gmail.com wrote:
Those are not the original Fortran sources. The original Fortran sources
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