[CHANGESET]: Statistics function incorrectly computing median

[Ben Abbott]

On Mar 9, 2008, at 1:48 PM, Jaroslav Hajek wrote:

> On Sun, Mar 9, 2008 at 6:23 PM, Ben Abbott <bpabbott at mac.com> wrote:
>>
>> On Mar 9, 2008, at 1:15 PM, Jaroslav Hajek wrote:
>>
>>> On Sun, Mar 9, 2008 at 5:33 PM, Ben Abbott <bpabbott at mac.com> wrote:
>>>>
>>>> On Mar 9, 2008, at 10:43 AM, Jaroslav Hajek wrote:
>>>>
>>>>> Hi Ben,
>>>>>
>>>>> in case you're interested, I've created a loop-free version of
>>>>> __quantile__ (attached as __quantile_vec__). It appears to be
>>>>> several
>>>>> times faster than your version. OTOH, as you've expected, the  
>>>>> memory
>>>>> consumption is certainly higher.
>>>>
>>>> I just glanced over the __quantile_vec__.m and noticed that the  
>>>> test
>>>> scripts refer to "quantile_vec__"
>>>>
>>>> I tried changing all references to __quantile_vec__, but the tests
>>>> failed.
>>>>
>>>> Ben
>>>>
>>>
>>> I'm sorry, I've ignored the tests so far (the name just got  
>>> changed by
>>> search & replace).
>>> Looking at them now, they're bound to fail, as the  
>>> __quantile_vec__ is
>>> supposed to operate on columns of a matrix, and you pass a row  
>>> vector
>>> for x everywhere.
>>> I'll correct the tests.
>>
>> Great. When this is done, your vectorized version will be a
>> replacement for quantile.m correct?
>>
>> Ben
>>
>>
> no. quantile.m will need to be changed; the call to dimfunc will be  
> replaced by
> a permute-reshape-__quantile__-reshape-ipermute sequence.

ok, that will be simple enough.

Ben