As an adverb we can get the ascending and descending by applying either /:
or \:
open 'stats/base/univariate' NB. in JQt will open the script
rankCompete=: 1 :'u~ i. ]'
On Thu, Mar 16, 2023 at 1:30 PM Ric Sherlock <tikk...@gmail.com> wrote:
> There are number of adverbs in the stats/base script for getting different
> types of rankings
>
> NB.*rankOrdinal a ordinal ranking ("0 1 2 3") of array y
>
> NB.*rankCompete a standard competition ranking ("0 0 2 3") of array y
>
> NB.*rankDense a dense ranking ("0 0 1 2") of array y
>
> NB.*rankFractional a fractional ranking ("0 1.5 1.5 3") of array y
>
>
> \: rankCompete vec
>
> 6 0 3 0 4 2 5 6
>
> On Thu, Mar 16, 2023 at 11:24 AM Devon McCormick <devon...@gmail.com>
> wrote:
>
>> These are both way better than what I came up with. Thanks!
>>
>> On Wed, Mar 15, 2023 at 5:07 PM 'robert therriault' via Programming <
>> programm...@jsoftware.com> wrote:
>>
>> > Nicely done Elijah!
>> >
>> > It has a pretty solution in tacit as well
>> >
>> > vec=. 49 275 93 275 92 99 91 49
>> > t=. i.~ \:~
>> > t vec
>> > 6 0 3 0 4 2 5 6
>> >
>> > Cheers, bob
>> >
>> > > On Mar 15, 2023, at 13:59, Elijah Stone <elro...@elronnd.net> wrote:
>> > >
>> > > One thing that comes to mind is (\:~vec) i.vec.
>> > >
>> > > On Wed, 15 Mar 2023, Devon McCormick wrote:
>> > >
>> > >> Hi, has anyone looked into how to generate a rank numbering where
>> > duplicate
>> > >> values get duplicate order numbers?
>> > >>
>> > >> For example, when we rank this vector descending,
>> > >> \:vec=. 49 275 93 275 92 99 91 49
>> > >> 1 3 5 2 4 6 0 7
>> > >> we see that 1 3{vec and 0 7{vec are the same so I would like to end
>> up
>> > with
>> > >> a rank numbering like this 6 0 3 0 4 2 5 6 so the ties for first and
>> > last
>> > >> place get the same value in the proper order where zero designates
>> the
>> > >> highest.
>> > >>
>> > >> I know I've done this before and I have a very clumsy way to achieve
>> > this
>> > >> but I'm wondering if there's a better one.
>> > >>
>> > >> Thanks,
>> > >>
>> > >> Devon
>> > >>
>> > >> --
>> > >>
>> > >> Devon McCormick, CFA
>> > >>
>> > >> Quantitative Consultant
>> > >>
>> ----------------------------------------------------------------------
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>> http://www.jsoftware.com/forums.htm
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>> >
>> > ----------------------------------------------------------------------
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>> >
>>
>>
>> --
>>
>> Devon McCormick, CFA
>>
>> Quantitative Consultant
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>>
>
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