masked_array(data=[True, False, --],
> mask=[False, False, True],
>fill_value=True)
>
> On Thu, 18 Apr 2019 at 10:51, Stuart Reynolds
> wrote:
> >
> > Thanks. I’m aware of bool arrays.
> > I think the tricky part of what I’m looking for is NULLability and
> int
float8 a thing?
On Thu, Apr 18, 2019 at 9:46 AM Stefan van der Walt
wrote:
> Hi Stuart,
>
> On Thu, 18 Apr 2019 09:12:31 -0700, Stuart Reynolds wrote:
> > Is there an efficient way to represent bool arrays with null entries?
>
> You can use the bool dtype:
>
> In [5]
Is there an efficient way to represent bool arrays with null entries?
Tools like pandas push you very hard into 64 bit float representations -
64 bits where 3 will suffice is neither efficient for memory, nor
(consequently), speed.
What I’m hoping for is that there’s a structure that is ‘viewed’
I'm having great luck using with numba, but there are two problems I find
difficult to solve with it.
Often I want to algorithms that performs a lookup of a list/array of
numbers. And this operation often comes in two flavors:
(1)=> # datastructure.get(0) => array
(2)=> #
Was recently already submitted:
https://github.com/numpy/numpy/issues/12749
On Tue, Jan 15, 2019 at 8:08 AM Stuart Reynolds
wrote:
> Will do.
>
> On Mon, Jan 14, 2019 at 7:10 PM Eric Wieser
> wrote:
>
>> This looks like a bug to me - can you file it on the issue tracker.
Will do.
On Mon, Jan 14, 2019 at 7:10 PM Eric Wieser
wrote:
> This looks like a bug to me - can you file it on the issue tracker.
>
> Evidently I did not consider python 2 behavior when backporting
> `os.fspath` from python 3.
>
> Eric
>
> On Mon, 14 Jan 2019 at 16:28
After a recent upgrade of numpy (1.13.1 -> 1.6.0), my code is failing where
I provide unicode objects as filenames.
Previously they were allowed. Now that are not, and I *must* provide a
(py2) str or bytearray only.
# str is OK
$ python2.7 -c "from numpy.compat import py3k; print py3k.os_fspath('1
np.float(scalar)
On Thu, May 10, 2018 at 7:49 PM Hameer Abbasi
wrote:
> Hello, everyone!
>
> I might be missing something and this might be a very stupid and redundant
> question, but is there a way to cast a scalar to a given dtype?
>
> Hameer
>
>
> _
Install snakeviz to visualize what’s taking all the time.
You might want to check out numba.jit(nopython) for optimizing specific
sections.
On Wed, Mar 28, 2018 at 9:10 PM Joseph Fox-Rabinovitz <
jfoxrabinov...@gmail.com> wrote:
> It looks like you are creating a coastline mask (or a coastline
