Hello,
I really like the split() family of functions, but I have the need to split
multiple arrays in a similar manner, and it would seem logical to me to have
a split() function that would return a list of slice tuples that I could use
on multiple arrays. Is there such a function?
Thanks,
Ben R
Hi eat and Gary,
Thanks a lot for your suggestions, I've tried them in my code and
achieved similar speedup of ~270% for both of them. So I guess I'll
stick to one of those.
Regards,
Andrey.
> Hi,
>
> On Thu, Mar 17, 2011 at 10:44 AM, Andrey N. Sobolev
> wrote:
>
> > Dear all,
> >
> > Sorr
3).nonzero(), works out and finds the 5th row.
>
> Am i doing something wrong?
> I basically want to find the rows whose fifth coloumn(4th in numpy matrix
> format) is 2.
>
> Any suggestions?
> Thanks
> Santhosh
> -- next part --
> An HTML attac
On Thu, Mar 17, 2011 at 3:30 PM, Pauli Virtanen wrote:
> Thu, 17 Mar 2011 15:23:19 -0700, Christopher Barker wrote:
> > On 3/17/11 2:57 PM, Mark Wiebe wrote:
> >> Dtypes being mutable looks like a serious bug to me, it's violating the
> >> definition of 'hashable' given here:
> >
> > I can imagin
On 3/17/11 3:17 PM, santhu kumar wrote:
> nid = (res[:,4]==2).nonzero()
> nid tuple turns out to be empty. But the very first row satisfies the
> criteria.
it works for me:
In [45]: arr
Out[45]:
array([[ 33.35053669, 49.4615004 , 44.27631299, 1., 2.
],
[ 32.84263059,
Thu, 17 Mar 2011 15:23:19 -0700, Christopher Barker wrote:
> On 3/17/11 2:57 PM, Mark Wiebe wrote:
>> Dtypes being mutable looks like a serious bug to me, it's violating the
>> definition of 'hashable' given here:
>
> I can imagine other problems is would cause, as well -- is there any
> reason th
On Thu, Mar 17, 2011 at 5:17 PM, santhu kumar wrote:
> Hello all,
>
> I am new to Numpy. I used to program before in matlab and am getting used
> to Numpy.
>
> I have a array like:
> res
> array([[ 33.35053669, 49.4615004 , 44.27631299, 1., 2.
> ],
>[ 32.84263059, 50.247520
On 3/17/11 2:57 PM, Mark Wiebe wrote:
> Dtypes being mutable looks like a serious bug to me, it's violating the
> definition of 'hashable' given here:
I can imagine other problems is would cause, as well -- is there any
reason that dtypes should be mutable?
-Chris
--
Christopher Barker, Ph.D
Hi,
Did you try np.where(res[:,4]==2) ?
Matthieu
2011/3/17 santhu kumar
> Hello all,
>
> I am new to Numpy. I used to program before in matlab and am getting used
> to Numpy.
>
> I have a array like:
> res
> array([[ 33.35053669, 49.4615004 , 44.27631299, 1., 2.
> ],
>[ 3
Hello all,
I am new to Numpy. I used to program before in matlab and am getting used to
Numpy.
I have a array like:
res
array([[ 33.35053669, 49.4615004 , 44.27631299, 1., 2.
],
[ 32.84263059, 50.24752036, 43.92291659, 1., 0.
],
[ 33.68999668, 48.9055467
On Thu, Mar 17, 2011 at 2:35 PM, Robert Kern wrote:
> On Wed, Mar 16, 2011 at 15:21, Mark Wiebe wrote:
>
> > That sounds like a good fix to me. Whenever objects compare equal, they
> > should hash to the same value.
>
> There is a limit to how far we can actually satisfy this requirement.
> For
On Wed, Mar 16, 2011 at 15:21, Mark Wiebe wrote:
> That sounds like a good fix to me. Whenever objects compare equal, they
> should hash to the same value.
There is a limit to how far we can actually satisfy this requirement.
For the implementation of np.dtype.__eq__(), we coerce the other
argum
Unfortunately it didn't work. I did:
> export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/atlas/lib
> python setup.py build
> python setup.py install
Then in another terminal
> export LIBRARY_PATH=$LIBRARY_PATH:/usr/local/atlas/lib
> python
>>> import numpy
>>>...
>>>from numpy.linalg import lapack_lite
It looks like atlas wasn't linked right. If you /usr/local/atlas/lib
to your LIBRARY_PATH environment variable it should work.
- Ilan
On Thu, Mar 17, 2011 at 12:23 PM, Jose Borreguero wrote:
> Dear Numpy/Scipy users,
>
> I just installed numpy but I have an error when importing
import nump
Dear Numpy/Scipy users,
I just installed numpy but I have an error when importing
>>> import numpy
from numpy.linalg import lapack_lite
ImportError: libatlas.so: cannot open shared object file: No such file or
directory
I have ATLAS libraries under /usr/local/atlas/lib
libatlas.a libcb
On 3/17/11 12:46 AM, eat wrote:
> I am try to read a file of the following format, I want to avoid
> the first line and read the remaining as 'float' .
> Please help me...
>
>
> RainWindTempPrSal
> 0.11.10.020.2 0.2
> 0.50. 0. 0
On 03/17/2011 03:23 PM, Yung-Yu Chen wrote:
On Wed, Mar 16, 2011 at 17:46, Dag Sverre Seljebotn
mailto:d.s.seljeb...@astro.uio.no>> wrote:
On 03/16/2011 10:14 PM, william ratcliff wrote:
> Related to this, what is the status of fwrap? Can it be used with
> fortran 95/2003 language
On Wed, Mar 16, 2011 at 17:46, Dag Sverre Seljebotn <
d.s.seljeb...@astro.uio.no> wrote:
> On 03/16/2011 10:14 PM, william ratcliff wrote:
> > Related to this, what is the status of fwrap? Can it be used with
> > fortran 95/2003 language features? There is a rather large code
> > crystallographi
Thanks Josef, that worked!
I was confused because I was thinking of site.cfg as some sort of bash
script :)
Jose
On Thu, Mar 17, 2011 at 12:40 AM, wrote:
> On Thu, Mar 17, 2011 at 12:23 AM, Jose Borreguero
> wrote:
> > Dear Numpy/SciPy users,
> >
> > I have a build error with Numpy:
> >
> >
Thanks sir,, thanks a lot ..
On Thu, Mar 17, 2011 at 1:16 PM, eat wrote:
> Hi,
>
> On Thu, Mar 17, 2011 at 9:36 AM, dileep kunjaai
> wrote:
>
>> Dear sir,
>> I am try to read a file of the following format, I want to avoid the
>> first line and read the remaining as 'float' .
>> Please
How about
argmin(add.reduce((a*a),axis=1))
In [5]: a
Out[5]:
array([[ 0.24202827, 0.01269182, 0.95162307],
[ 0.02979253, 0.454 , 0.49650111],
[ 0.52626565, 0.08363861, 0.56444878],
[ 0.89639659, 0.54259354, 0.29245881],
[ 0.75301013, 0.6248646 , 0.245658
Hi,
On Thu, Mar 17, 2011 at 10:44 AM, Andrey N. Sobolev wrote:
> Dear all,
>
> Sorry if that's a noob question, but anyway. I have several thousands of
> vectors stacked in 2d array. I'd like to get new array containing
> Euclidean norms of these vectors and get the vector with minimal norm.
>
>
Dear all,
Sorry if that's a noob question, but anyway. I have several thousands of
vectors stacked in 2d array. I'd like to get new array containing
Euclidean norms of these vectors and get the vector with minimal norm.
Is there more efficient way to do this than
argmin(array([sqrt(dot(x,x)) fo
Hi,
On Thu, Mar 17, 2011 at 9:36 AM, dileep kunjaai wrote:
> Dear sir,
> I am try to read a file of the following format, I want to avoid the first
> line and read the remaining as 'float' .
> Please help me...
>
>
> RainWindTempPrSal
> 0.11.10.020.2 0.2
> 0.50.
Dear sir,
I am try to read a file of the following format, I want to avoid the first
line and read the remaining as 'float' .
Please help me...
RainWindTempPrSal
0.11.10.020.2 0.2
0.50. 0. 0.4 0.8
0.55.51.50.5 1.5
3.50.51.5
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