On Wed, Oct 1, 2008 at 1:26 AM, Gael Varoquaux
<[EMAIL PROTECTED]> wrote:
>
> Absolutely. I just think k should default to None, when
> distance_upper_bound is specified. k=None could be interpreted as k=1
> when distance_uppper_bound is not specified.
>
Why not expose the various possibilities th
On Mon, Sep 29, 2008 at 8:24 PM, Anne Archibald
<[EMAIL PROTECTED]> wrote:
> Hi,
>
> Once again there has been a thread on the numpy/scipy mailing lists
> requesting (essentially) some form of spatial data structure. Pointers
> have been posted to ANN (sadly LGPLed and in C++) as well as a handful
On Tue, Sep 30, 2008 at 06:10:46PM -0400, Anne Archibald wrote:
> > k=None in the third call to T.query seems redundant. It should be
> > possible do put some logics so that the call is simply
> > distances, indices = T.query(xs, distance_upper_bound=1.0)
> Well, the problem with this is that you
On Tue, Sep 30, 2008 at 9:27 PM, Brian Blais <[EMAIL PROTECTED]>
> thanks for all of the help. My initial solution is to pickle my object,
> with the text-based version of pickle, and send it across rpc. I do this
> because the actual thing I am sending is a dictionary, with lots of arrays,
> and
On Tue, Sep 30, 2008 at 4:37 PM, Anne Archibald
<[EMAIL PROTECTED]>wrote:
> 2008/9/30 bevan <[EMAIL PROTECTED]>:
> > Hello,
> >
> > I have some XY data. I would like to generate the equations for an upper
> and
> > lower envelope that excludes a percentage of the data points.
> >
> > I would like
Brian,
On Tuesday 30 September 2008 17:27:32 Brian Blais wrote:
> On Sep 30, 2008, at 18:42 , Sebastien Binet wrote:
> > yeah... Robert pointed it to me that as xmlrpc is meant for cross-
> > language RPC,
> > sending python objects over the wire isn't so useful, hence the
> > usage of marshal
> >
Hi all,
I think the original announcement only went to the Sage lists, but
this should be of interest to this crowd as well.
Cheers,
f
-- Forwarded message --
From: Craig Citro <[EMAIL PROTECTED]>
Date: Sun, Sep 21, 2008 at 8:47 PM
Subject: [sage-devel] Sage Days 11: November 7-
On Sep 30, 2008, at 18:42 , Sebastien Binet wrote:
yeah... Robert pointed it to me that as xmlrpc is meant for cross-
language RPC,
sending python objects over the wire isn't so useful, hence the
usage of marshal
instead of pickle.
thanks for all of the help. My initial solution is to pic
Ravi wrote:
> On Tuesday 30 September 2008 16:26:08 Travis E. Oliphant wrote:
>
>> You need to do something like:
>>
>> temp = PyArray_Resize(array,...)
>> Py_DECREF(array)
>> array = temp
>>
>
> In this case, since a new array may be returned, is there no way to
> synchronize with other o
Lisandro,
On Tuesday 30 September 2008 15:24:56 Lisandro Dalcin wrote:
> Sebastien, numpy arrays are picklable; so no need to register them
> with copy_reg. I believe the actual problem with xmlrpclib is that it
> uses the marshal protocol (only supports core builtin types), and not
> the pickle p
Anne Archibald gmail.com> writes:
>
> 2008/9/30 bevan gmail.com>:
> > Hello,
> >
> > I have some XY data. I would like to generate the equations for an upper
and
> > lower envelope that excludes a percentage of the data points.
> >
> > I would like to define the slope of the envelope line (sa
Sebastien, numpy arrays are picklable; so no need to register them
with copy_reg. I believe the actual problem with xmlrpclib is that it
uses the marshal protocol (only supports core builtin types), and not
the pickle protocol.
On Tue, Sep 30, 2008 at 5:18 PM, Sebastien Binet
<[EMAIL PROTECTED]> w
On Tue, Sep 30, 2008 at 6:10 PM, Anne Archibald
<[EMAIL PROTECTED]> wrote:
>
> Well, the problem with this is that you often want to provide a
> distance upper bound as well as a number of nearest neighbors. For
This use case is also important in scattered data interpolation, so we
definitely want
2008/9/30 Gael Varoquaux <[EMAIL PROTECTED]>:
> On Tue, Sep 30, 2008 at 05:31:17PM -0400, Anne Archibald wrote:
>> T = KDTree(data)
>
>> distances, indices = T.query(xs) # single nearest neighbor
>
>> distances, indices = T.query(xs, k=10) # ten nearest neighbors
>
>> distances, indices = T.query(x
On Tuesday 30 September 2008 17:18:13 Travis E. Oliphant wrote:
> Hmm... I'm not 100% sure off the top of my head, but I would say that
> 0d arrays should determine the type coercion if any and the returned
> thing should be a numpy scalar.
Travis,
I'm afraid I don't understand. According to you
On Tue, Sep 30, 2008 at 05:31:17PM -0400, Anne Archibald wrote:
> T = KDTree(data)
> distances, indices = T.query(xs) # single nearest neighbor
> distances, indices = T.query(xs, k=10) # ten nearest neighbors
> distances, indices = T.query(xs, k=None, distance_upper_bound=1.0) #
> all within 1 o
2008/9/30 Peter <[EMAIL PROTECTED]>:
> On Tue, Sep 30, 2008 at 5:10 AM, Christopher Barker
> <[EMAIL PROTECTED]> wrote:
>>
>> Anne Archibald wrote:
>>> I suggest the creation of
>>> a new submodule of scipy, scipy.spatial,
>>
>> +1
>>
>> Here's one to consider:
>> http://pypi.python.org/pypi/Rtree
On Tuesday 30 September 2008 16:26:08 Travis E. Oliphant wrote:
> You need to do something like:
>
> temp = PyArray_Resize(array,...)
> Py_DECREF(array)
> array = temp
In this case, since a new array may be returned, is there no way to
synchronize with other objects holding a reference to the ori
Pierre GM wrote:
> Sorry to bump my own post, I know it's rude...
>
> However, I'm in dire need for some pointers: what are the priority rules when
> multiplying numpy scalars and 0d ndarrays ?
>
> Thanks a lot in advance
> ___
> Numpy-discussion mailin
Sorry to bump my own post, I know it's rude...
However, I'm in dire need for some pointers: what are the priority rules when
multiplying numpy scalars and 0d ndarrays ?
Thanks a lot in advance
___
Numpy-discussion mailing list
Numpy-discussion@scipy.o
On Sun, Sep 28, 2008 at 9:47 AM, oc-spam66 <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> I have two lists of numpy matrices : LM = [M_i, i=1..N] and LN = [N_i, i
> =1..N]
> and I would like to compute the list of the products : LP = [M_i * N_i,
> i=1..N].
>
> I can do :
>
> P=[]
> for i in range(N) :
2008/9/30 bevan <[EMAIL PROTECTED]>:
> Hello,
>
> I have some XY data. I would like to generate the equations for an upper and
> lower envelope that excludes a percentage of the data points.
>
> I would like to define the slope of the envelope line (say 3) and then have my
> code find the intercep
Ravi wrote:
> Hi,
> Consider the following code:
>
>PyArrayObject *array = get_me_an_array_along_with_a_reference(); /* 1 */
>PyArray_Dims *dims = get_me_some_dims(); /* 2 */
>array = (PyArrayObject *)PyArray_Resize( array, dims, 1 ); /* 3 */
>
> Is the code above valid?
No.
You nee
Hi,
[..snip..]
On Tuesday 30 September 2008 12:05:27 Robert Kern wrote:
> > doing something wrong. Is there a way to fix this? Is there another
> > approach that I should be using?
>
> The marshal module *only* handles builtin Python types. It explicitly
> does not handle anything from third par
Hi,
Consider the following code:
PyArrayObject *array = get_me_an_array_along_with_a_reference(); /* 1 */
PyArray_Dims *dims = get_me_some_dims(); /* 2 */
array = (PyArrayObject *)PyArray_Resize( array, dims, 1 ); /* 3 */
Is the code above valid? In particular, is the assigment on line
On Tue, Sep 30, 2008 at 12:53, Brian Blais <[EMAIL PROTECTED]> wrote:
> Hello,
> I am trying to use xml-rpc to be able to run some simulations remotely. I
> am running into a problem with the transfer of numpy arrays. my server code
> looks like:
> #!/usr/bin/env python
> def again(x): # test ou
On Tue, Sep 30, 2008 at 7:42 AM, Pete Forman <[EMAIL PROTECTED]>wrote:
> "Charles R Harris" <[EMAIL PROTECTED]> writes:
>
> > OK, here is what is looks like to me at the moment given that numpy
> > requires an IEEE754 machine:
> >
> >o We need a reliable value for NAN. [...]
> >
> >
> >
Hi,
in order to marshal numpy arrays, you can use the
tostring() method. The inverse is the fromstring()
function in numpy.
But you must know dtype and shape in order to
reconstruct your array.
Greetings, Uwe
On 30 Sep., 19:53, Brian Blais <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I am trying to u
Hello,
I am trying to use xml-rpc to be able to run some simulations
remotely. I am running into a problem with the transfer of numpy
arrays. my server code looks like:
#!/usr/bin/env python
def again(x): # test out the sending of data
return [x,x]
from SimpleXMLRPCServer import Si
"Charles R Harris" <[EMAIL PROTECTED]> writes:
> OK, here is what is looks like to me at the moment given that numpy
> requires an IEEE754 machine:
>
>o We need a reliable value for NAN. [...]
>
>
>o Max/min follow the IEEE standard. Given a choice of
> nan/non-nan, retur
Bevan,
You can estimate the intercept and slope using least-squares
(scipy.optimize.leastsq). Make sure though that errors in X are small
compared to errors in Y, otherwise, your slope will be underestimated.
Using the slope, you can write a function lower(b,a, X,Y) that will compute
y=aX+b and r
Thank you so very much!
> From: [EMAIL PROTECTED]
> To: numpy-discussion@scipy.org
> Date: Mon, 29 Sep 2008 23:24:02 -0400
> Subject: Re: [Numpy-discussion] Numpy Nu-bee: "forward fill" function
>
> On Monday 29 September 2008 22:31:47 Joshua Ford wrote:
> > I would like to conduct the equiva
On Tue, Sep 30, 2008 at 5:10 AM, Pete Forman <[EMAIL PROTECTED]>wrote:
> I've seen no mention in this thread of IEEE Std 754-2008 which was
> published last month. minNum(x, y) and maxNum(x, y) return a
> floating-point number if the other argument is NaN.
>
> The OP's question is about the sign
I've seen no mention in this thread of IEEE Std 754-2008 which was
published last month. minNum(x, y) and maxNum(x, y) return a
floating-point number if the other argument is NaN.
The OP's question is about the sign of NaN. In 754r it can be tested,
copied, etc. Operations involving NaNs propag
A Monday 29 September 2008, Anne Archibald escrigué:
> 2008/9/29 Francesc Alted <[EMAIL PROTECTED]>:
> > But I agree with Robert Kern that tests *should* never be run under
> > -OO because they are *tests*, not production code, and using the
> > -OO for running the test units is simply a wrong prac
Hello,
I have some XY data. I would like to generate the equations for an upper and
lower envelope that excludes a percentage of the data points.
I would like to define the slope of the envelope line (say 3) and then have my
code find the intercept that fits my requirements (say 5% of data below
On Tue, Sep 30, 2008 at 5:10 AM, Christopher Barker
<[EMAIL PROTECTED]> wrote:
>
> Anne Archibald wrote:
>> I suggest the creation of
>> a new submodule of scipy, scipy.spatial,
>
> +1
>
> Here's one to consider:
> http://pypi.python.org/pypi/Rtree
> and perhaps other stuff from:
> http://trac.gisp
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