[EM] NPV vs Condorcet

[Bob Richard]

I'm obviously missing something really, really basic here. Can someone 
explain to me what it is?

 > Take it from the FPTP count and recount it
 > into the N*N array by Condorcet rules ...

I still have no idea what this means. Here's an example:

Plurality result:
   Able: 45
   Baker: 40
   Charlie: 15

Here's a (very naive) NxN matrix (fixed-width font required):
 
         Able     Baker    Charlie
         -------  -------  -------
Able        --       45       45
Baker       40       --       40
Charlie     15       15       --

But it's not a Condorcet count because we have, for example, no idea how 
many of the Able voters prefer Baker to Charlie and how many prefer 
Charlie to Baker. As a result, the pairs of cells above and below the 
diagonal don't add up to 100. I still don't see how we can "recount it 
into the NxN matrix by Condorcet rules".

Someone please show me the NxN matrix that Dave Ketchum would use to 
combine these votes with the other votes that had been cast on ranked 
ballots.

Thanks,
Bob

Dave Ketchum wrote:
> If a Condorcet voter bullet votes, that is voting for one candidate.
>
> An FPTP voter's only capability is to vote for one candidate.
>
> We have exactly the same information from these two votes.  Take it 
> from the FPTP count and recount it into the N*N array by Condorcet 
> rules and you have exactly the same result from these two voters.
>
> Not all Condorcet voters bullet vote, but this gives FPTP voters a 
> chance to participate until their states move up to Condorcet.
>
> I thought, momentarily, about combining in other methods such as 
> Range, and do not see anything practical for such.
>
> DWK
>
> On Tue, 21 Oct 2008 15:36:46 -0700 Bob Richard wrote:
>> Please provide a simple example of a Condorcet matrix synthesized out 
>> of an FPTP ranking. Apparently I'm not understanding this at all -- 
>> maybe there *is* a way to look at this that doesn't involve 
>> truncation.  But I'm very sceptical of any proposal that involves 
>> aggregating different voting methods in various subjurisdictions into 
>> a single result.
>>
>> Thanks in advance.
>>
>> --Bob

-- 
Bob Richard
Marin Ranked Voting
P.O. Box 235
Kentfield, CA 94914-0235
415-256-9393
http://www.marinrankedvoting.org