On 02/01/07, Bock, Oliver BGI SYD <[EMAIL PROTECTED]> wrote:
> Some of my arrays are not fully populated. (I separately record which
> entries are valid.) I want to use numpy.empty() to speed up the
> creation of these arrays, but I'm worried about what will happen if I
> apply operations to the
Bock, Oliver BGI SYD wrote:
> Some of my arrays are not fully populated. (I separately record which
> entries are valid.) I want to use numpy.empty() to speed up the
> creation of these arrays, but I'm worried about what will happen if I
> apply operations to the entire contents of these arrays.
Bock, Oliver BGI SYD wrote:
> Some of my arrays are not fully populated. (I separately record which
> entries are valid.) I want to use numpy.empty() to speed up the
> creation of these arrays, but I'm worried about what will happen if I
> apply operations to the entire contents of these arrays.
Some of my arrays are not fully populated. (I separately record which
entries are valid.) I want to use numpy.empty() to speed up the
creation of these arrays, but I'm worried about what will happen if I
apply operations to the entire contents of these arrays. E.g.
a + b
I care about the resul
All,
I've updated this famous reimplementation of maskedarray I keep ranting about.
A new feature has been introduced : hard_mask.
When a masked array is created with the flag hard_mask=True, the mask can only
grow, not shrink. In other terms, masked values cannot be unmasked.
The flag hard_mask is
On Mon, 1 Jan 2007, Niklas Saers apparently wrote:
> If it makes any sense I'd love to send you this variable
> that had len(2048) but was very much longer if stomped
> flat. :-)
It looks like you may already understand this,
but just in case...
import numpy
r = numpy.random.random((100,5))
m
Charles R Harris schrieb:
>
> mat(5) is a 1x1 matrix:
>
> In [5]: mat(5)
> Out[5]: matrix([[5]])
>
> so the error is valid. If you want to do a scalar multiply try
>
> In [6]: amat*5
> Out[6]:
> matrix([[ 0, 5, 10, 15],
> [20, 25, 30, 35],
> [40, 45, 50, 55]])
Or you can do m
Hi Matthew
On Tue, Jan 02, 2007 at 02:30:34AM -0500, Matthew Koichi Grimes wrote:
> Is it hard to subclass recarrays? I'm currently working on a subclass
> that doesn't add much; just some methods that sets all the values to
> zero and other similarly trivial things. It'd be nice to make it wor
