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Date: Sat, 6 Feb 2010 15:27:24 +0200
Message-ID: <98a246a11002060527u2b7fff04yf58afd16aebb75b9@mail.gmail.com>
Subject: Re: ranking a big list
From: Metin Akat <akat.metin@gmail.com>
To: user@couchdb.apache.org
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Hi,
What if 2 students have score of 200 and the next 3 have score of 199?
How do you decide who is fourth?

On Sat, Feb 6, 2010 at 3:00 PM, Mano <manokaran@gmail.com> wrote:
> Hi,
>
> I have a large list of assessment scores (of about 500k students). The
> scores can range between 0 and 200. How do I find the rank of a particula=
r
> score? For smaller lists, I can just sort the array of scores and for eac=
h
> student's score I can get the index of their score in the sorted list. Bu=
t
> how do I achieve it using mapreduce?
>
> Thanks,
> mano
>
> --
> Lord, give us the wisdom to utter words that are gentle and tender, for
> tomorrow we may have to eat them.
> =A0 -Sen. Morris Udall
>