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Fixya rating math

Hi there,
I notice an odd thing about the detail of the vote totals for both of our fixya raitngs, namely that the totals of the various catagories of rating don't sum to the same total as the number of votes. In my case I'm missing some votes, in yours you seem to have an extra vote somewhere in there :-)

Should I be able to add up all of the totals of "FixYa", "Helpfull". etc. votes and get the total listed as "xx votes" up at the top? If I then add the "Unrated" total shouldn't I get the total number of solutions I posted?

Not a big deal, but I wanna understand.

Thanks,
Carl

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  • 2 more comments 
  • Carl Gehrke
    Carl Gehrke Jan 02, 2009

    I carefully checked each of the solutions I was rated on, none seem to have more than 1 vote listed. That part makes me a little suspicious of your answer. For now I'll just ignore the mystery votes (those that are listed in the total but show up no where else), and take it as given that you are unable to "see" the algorithm that does this averaging in code. For what it's worth, my several years in the software QA field says that if I can't do the math by hand and get the same answer as the code does, then there is something wrong/different about the code. Each solution page ought to either list all the votes recorded or not attribute multiple votes to a single voter.

    I'll keep contributing as I can. Add my voice to whatever list there may be calling for a more obvious and transparent scoring system.

    Carl


  • Carl Gehrke
    Carl Gehrke Jan 22, 2009

    Thanks, that answered my questions satisfactorily.
    I agree wholeheartedly with your sentiments and look forward to having great times with FixYa.

    Carl


  • Carl Gehrke
    Carl Gehrke Jan 26, 2009

    I live in North Fort Myers. It's a fairly cool place to live, and I'm near my dear elderly Dad :-)




  • Anonymous Mar 20, 2014

    American idol vote

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2 Answers

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Carl,
Your question has been echoed by nearly every expert that has been rated more than three times. Split those numbers into two categories:

  1. Rating Percentages
  2. Rating Totals
The totals not adding up is easy to answer. The term coined by many in the lounge is 'Drive-By' ratings. You may know it by now, but here is how the ratings work.
  • A problem is posted
  • You post a solution
  • Someone else posts a solution
  • When the problem is redisplayed both solutions show. The Asker has not yet rated either.
  • The other solution has the four rating choices (FY, H, TFT, IA). If you felt like it, you have the ability to rate that solution, as does anyone else who happens to 'drive-by'.
  • Yours does not. Self rating is frowned upon. However, everyone else can rate it.
  • Say someone does just that and rates a FixYa. The FixYa shows on top of the solution. Everyone but the person that rated you can still rate you.
  • The Asker then Rates your solution a Fixya.
  • The solution will still show a FixYa up top.
  • At the bottom, Rating Locked! Asker has rated this solution as FixYa. No more ratings can be made.
  • There are still two votes there for one solution. There can be more.
So:
  1. A solution is unlocked as long as the Asker has not rated it.
  2. An unlocked solution is ratable by anyone but the providing expert.
  3. Once an Asker rates a solution, it is locked. Only the Asker can change the rating at that point. All others are locked out
  4. A solution can be rated many times while unlocked.
  5. You can only rate a solution once.
  6. There is no easy, after the fact way to tell how many times a particular solution has been rated. You can't just eyeball it and be able to tell.
That's why (total votes + total unrated solutions <> total solutions)

The percentages are a whole different story. There has been speculation by the truckload on the math that makes up the rating percentages. The proofs don't proof.

I was a math major, consistently scoring in the 99th percentile in everything from Algebra to Advanced Trigonometry. I've got 25 years of data processing experience, I program in 13 languages, I'm a system developer, programming engineer and dozens of other titles. In short, I've got applicable skills in the area.

That said, I still haven't reverse engineered the algorithyms that come up with those percentages. So don't beat yourself up. If you want the algorythm that it is supposed to be based on, let me know. It is close, but there is still some unknown variable being factored into the mix.

Hopefully this clarified a portion of your curiousity

Two sidebars:
One involves a Generac 6.6kv generator that I'll put into an AskMe

The other is only a suggestion is from one Expert to another. There is goodwill to be garnered by exercising a measure of professional courtesy when rating fellow experts.

We each know the difficulty in maintaining percentages. The fact that many Askers do not understand the ratings system (how could they?) when they cast their votes.

Knowing this, I would rather not rate someone, than rate them down. This is only an opinion and is meant to be a constructive positive critique. I hope you interpret it that way.

With your background, I anticipate asking you many questions in the near future. I look forward to starting these interactions in the same way this one ends, on a positive note.

Once again, I hope this at least explains the total side of the ratings.

Mike258

Posted on Jan 22, 2009

  • Justin Case
    Justin Case Jan 22, 2009

    Hi Carl,
    That was quick.
    I assume by your avatar you are in Florida. What part?

    I spent 13 years on the left coast in the Tampa/St.Pete area.


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  • 155 Answers

Hi Carl. The problem is that the interface is very misleading. The total number of votes is the absolute total number of votes that have been cast on your solutions. Your numeric percentage is the average of those votes. But each solution may receive several votes. Those votes are averaged for that solution, and the resulting rating is what appears on the site and in the FY, H, TFT, IA break down. That is why the numbers do not add up. I hope this clears things up. Sorry for the delayed response, but I was on Christmas holiday. Please feel free to contact FixYa Support Team directly at: http://www.fixya.com/contact

Posted on Dec 29, 2008

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
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goodluck!

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What do you have to do to become a Wiz in FixYa? I am new and have put in 41 solutions but am still at Master status. When will I be a Wiz and how long until I am a premium expert?


Rank Average Rating Minimum Number of
Solutions Posted guru.gif Guru 85% or higher, 5 votes minimum. 50 wizard.gif Wiz 80% or higher, 5 votes minimum. 30 master.gif Master No Ratings Required 10 expert.gif Guide No Ratings Required 5 nonexpert.gif Apprentice No Ratings Required Rank Average Rating Minimum Number of
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but here is an extract:

Ranks are calculated by dividing the total value of the ratings cast on an Expert's Solutions by the Expert's number of rated Solutions. Unrated Solutions, Premium ratings, and Live Chat ratings are not factored into Experts' averages.

Rank Average Rating Minimum Number of
Solutions Posted guru.gif Guru 85% or higher, 5 votes minimum. 50 wizard.gif Wiz 80% or higher, 5 votes minimum. 30 master.gif Master No Ratings Required 10 expert.gif Guide No Ratings Required 5 nonexpert.gif Apprentice No Ratings Required
Wizz needs 80% or higher ranking, 5 votes minumum and 30 solutions minimum.

The help screens are good so just have a look around and you'll find out lots.
Rank Average Rating Minimum Number of
Solutions Posted guru.gif Guru 85% or higher, 5 votes minimum. 50 wizard.gif Wiz 80% or higher, 5 votes minimum. 30 master.gif Master No Ratings Required 10 expert.gif Guide No Ratings Required 5 nonexpert.gif Apprentice No Ratings Required

Rank Average Rating Minimum Number of
Solutions Posted guru.gif Guru 85% or higher, 5 votes minimum. 50 wizard.gif Wiz 80% or higher, 5 votes minimum. 30 master.gif Master No Ratings Required 10 expert.gif Guide No Ratings Required 5 nonexpert.gif Apprentice No Ratings Required

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It was a pleasure, Did you get the detailed E-mail I sent you? It Has all the info and more. Make sure you rate this Fixya too, It will be good for my average and I will be able to help out more people like I helped you. Fixya.com is the coolest site I have ever found. I love helping people and here I find new people to help every day. If you could send me more requests for help like this and I will answer them free here and you can vote on them for me. Someone keeps hacking the site and jacking my fixya's. So whenever you need help ask your question here so I can answer it here ir free and It will help get my score up where it should be. I fixed over 250 things for people since the 15 and I only have 15 fixya votes left. Anyway, Ask here and rate them fixya like I always do.Thanks Mario,
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HI,

When i was new to fixya even it took 3 months to get me started.Please keep continuing your good effort.For any further details you can contact fixya.

Goodluck..

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Hey iDude~


Well, best thing is to choose queries that are complete and that you are comfortable with. Also the ones asking for drivers, manuals, etc that should be easy to find.
I also take time to research the answers and provide all possible solutions in the first answer itself..most askers want immediate answers, and I try to avoid the queries where you know the asker has to get a repair done. Even if so, i try to provide as much information on troubleshooting as possible, before mentioning in the last line "if all these methods are unsuccessful you will probably have to get the device repaired or purchase a new one, whichever works out cheaper for you". Most cases they are happy with that statement.
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