On Wed, Nov 19, 2008 at 01:31, David Warde-Farley <[EMAIL PROTECTED]> wrote:
> On 18-Nov-08, at 3:06 PM, Robert Kern wrote:
>
>> I like to discourage this use of where(). For some reason, back in
>> Numeric's days, where() got stuck with two functionalities. nonzero()
>> is the preferred function f
On 18-Nov-08, at 3:06 PM, Robert Kern wrote:
> I like to discourage this use of where(). For some reason, back in
> Numeric's days, where() got stuck with two functionalities. nonzero()
> is the preferred function for this functionality. IMO, where(cond,
> if_true, if_false) should be the only use
Anne Archibald wrote:
> 2008/11/18 Robert Young <[EMAIL PROTECTED]>:
>
>
>> Is there a method in NumPy that reduces a matrix to it's reduced row echelon
>> form? I'm brand new to both NumPy and linear algebra, and I'm not quite sure
>> where to look.
>>
>
> Unfortunately, reduced row-echelo
2008/11/18 Robert Young <[EMAIL PROTECTED]>:
> Is there a method in NumPy that reduces a matrix to it's reduced row echelon
> form? I'm brand new to both NumPy and linear algebra, and I'm not quite sure
> where to look.
Unfortunately, reduced row-echelon form doesn't really work when using
approx
On Tue, Nov 18, 2008 at 14:21, Robert Young <[EMAIL PROTECTED]> wrote:
> Hi,
>
> Is there a method in NumPy that reduces a matrix to it's reduced row echelon
> form? I'm brand new to both NumPy and linear algebra, and I'm not quite sure
> where to look.
No, we don't have a function to do that. Wha
frank wang schrieb:
> Hi,
>
> I have a large array and I want to convert it into a binary array. For
> exampe, y=array([1,2,3]), after the convertion I want the result
> array([0,0,0,1,0,0,1,0,0,0,1,1]). Each digit is converted into 4 bits
> in this example. In my real problem I want to conver
Hi,
Is there a method in NumPy that reduces a matrix to it's reduced row echelon
form? I'm brand new to both NumPy and linear algebra, and I'm not quite sure
where to look.
Thanks
Rob
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Hi,
I have a large array and I want to convert it into a binary array. For exampe,
y=array([1,2,3]), after the convertion I want the result
array([0,0,0,1,0,0,1,0,0,0,1,1]). Each digit is converted into 4 bits in this
example. In my real problem I want to convert each digit to 8 bits. My data
On Tue, Nov 18, 2008 at 04:48, David Warde-Farley <[EMAIL PROTECTED]> wrote:
> On 18-Nov-08, at 5:29 AM, Nicolas ROUX wrote:
>
>> Hi,
>>
>> Maybe this is not so clever, but I can't find it in the doc.
>> I need to get all indices/index of all occurrences of a value in a
>> numpy
>> array
>>
>>
>> A
Egor Zindy wrote:
> I just finished coding all the ARGOUTVIEWM fragments in numpy.i and
> wrote a wiki to explain what I did:
> http://code.google.com/p/ezwidgets/wiki/NumpyManagedMemory
thanks! good stuff.
It would be great if you could put that in the numpy (scipy?) wiki
though, so more folk
Hello list,
I just finished coding all the ARGOUTVIEWM fragments in numpy.i and
wrote a wiki to explain what I did:
http://code.google.com/p/ezwidgets/wiki/NumpyManagedMemory
No new information in there, but everything (explanations, links, code)
is provided on a single page.
Regards,
Egor
E
-- Forwarded message --
From: Matthieu Brucher <[EMAIL PROTECTED]>
Date: Tue, Nov 18, 2008 at 1:36 PM
Subject: Re: [Numpy-discussion] fill() function does not work.
To: Discussion of Numerical Python
>From the docstring:
a.fill(value) -> None. Fill the array with the scalar valu
Thanks for the quick reply.
It is my fault to overlook the manual.
Frank> Date: Tue, 18 Nov 2008 19:36:23 +0100> From: [EMAIL PROTECTED]> To:
numpy-discussion@scipy.org> Subject: Re: [Numpy-discussion] fill() function
does not work.> > >From the docstring:> > a.fill(value) -> None. Fill the
>From the docstring:
a.fill(value) -> None. Fill the array with the scalar value.
The method modifies the array, but does not return it.
Matthieu
2008/11/18 frank wang <[EMAIL PROTECTED]>:
> Hi,
>
> My numpy is 1.2.1 and python is 2.5.2.
>
> In python, I did:
>
> from numpy import *
> x=array([
Hi,
My numpy is 1.2.1 and python is 2.5.2.
In python, I did:
from numpy import *
x=array([1,2,3])
z=x.fill(x)
print z
None
z should be filled with zero. I do not knwo why I got None. Can anyone help me
on this?
Thanks
Frank
All,
ma.masked_array is a constructor function for ma.MaskedArray, like
np.array is a constructor for np.ndarray. Its intended use is:
a = ma.masked_array(yourdata, mask=yourmask, dtype=yourdtype)
to which you can add the keyword arguments presented in the doc.
ma.masked is a special constant u
Thanks ;-)
It's pretty good, as I can apply it to any condition.
Cheers,
Nivolas.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Francesc Alted
Sent: Tuesday, November 18, 2008 11:40 AM
To: Discussion of Numerical Python
Subject: Re: [Numpy-discussion
On 18-Nov-08, at 5:29 AM, Nicolas ROUX wrote:
> Hi,
>
> Maybe this is not so clever, but I can't find it in the doc.
> I need to get all indices/index of all occurrences of a value in a
> numpy
> array
>
>
> As example:
>
> a = numpy.array([1,2,3],[4,5,6],[7,8,9])
> I need to get the indice/inde
Hi,
About the missing doc directory in the windows install in latest numpy
release, could you please add it ?
(please see below the previous thread)
Thanks,
Cheers,
Nicolas.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Stefan van der Walt
Sent: Thurs
===
Announcing PyTables 2.1rc2
===
PyTables is a library for managing hierarchical datasets and designed to
efficiently cope with extremely large amounts of data with support for
full 64-bit file addressing. PyTables runs on top of the HDF5 library
A Tuesday 18 November 2008, Nicolas ROUX escrigué:
> Hi,
>
> Maybe this is not so clever, but I can't find it in the doc.
> I need to get all indices/index of all occurrences of a value in a
> numpy array
>
>
> As example:
>
> a = numpy.array([1,2,3],[4,5,6],[7,8,9])
> I need to get the indice/inde
Hi,
Maybe this is not so clever, but I can't find it in the doc.
I need to get all indices/index of all occurrences of a value in a numpy
array
As example:
a = numpy.array([1,2,3],[4,5,6],[7,8,9])
I need to get the indice/index of all array elements where a[a>3]
Any fast/easy way to write this
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