Anne Archibald wrote:
>
> I would think sign should return NaN (does it not now?) unless its
> return type is integer, in which case I can't see a better answer than
> raising an exception (we certainly don't want it silently swallowing
> NaNs).
>
signbit (the C99 macro) returns an integer. So
2008/9/26 David Cournapeau <[EMAIL PROTECTED]>:
> Charles R Harris wrote:
>>
>> I'm also wondering about the sign ufunc. It should probably return nan
>> for nans, but -1,0,1 are the current values. We also need to decide
>> which end of the sorted values the nans should go to. I'm a bit
>> partial
On Friday 26 September 2008 08:29:02 Charles R Harris wrote:
> It shouldn't be any more difficult to do either based on a keyword.
> Argsorts shouldn't be a problem either. I'm thinking that the most flexible
> way to handle the sorts is to make a preliminary pass through the data and
> collect all
On Thu, Sep 25, 2008 at 10:56 PM, David Cournapeau <
[EMAIL PROTECTED]> wrote:
> Charles R Harris wrote:
> >
> > I'm also wondering about the sign ufunc. It should probably return nan
> > for nans, but -1,0,1 are the current values. We also need to decide
> > which end of the sorted values the nan
Charles R Harris wrote:
>
> I'm also wondering about the sign ufunc. It should probably return nan
> for nans, but -1,0,1 are the current values. We also need to decide
> which end of the sorted values the nans should go to. I'm a bit
> partial to the beginning but the end would be fine with me, it
On Thu, Sep 25, 2008 at 10:15 PM, David Cournapeau <
[EMAIL PROTECTED]> wrote:
> Hi,
>
>We started a small document to gather all information given in
> previous threads about NaN handling in max and co in numpy. Thanks to
> Anne (Archibald) for useful comments/additions/typo corrections:
>
>
Hi,
We started a small document to gather all information given in
previous threads about NaN handling in max and co in numpy. Thanks to
Anne (Archibald) for useful comments/additions/typo corrections:
http://projects.scipy.org/scipy/numpy/wiki/ProperNanHandling
We describe approaches taken
