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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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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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2 Answers

Log in to vote


FixYa is not a polling site. Please contact your local voter regstration agency to find the site for your precinct. Sorry, I can't give any further details without knowing what part of the world you're in.

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I keep getting notices that my answers have helped some people, but my answers are never shown, so I never know what Fixya is talking about;


Hi Warren,

To view your answers, just click on your name at the top of any page on Fixya and then select My Account in the dropdown that appears.

On the My Account page, just scroll down to the My Answers section to view any answers you've provided on Fixya.

Hope that helps!

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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
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 You need to visit the Expert FAQ's section to get answers to this, link is http://www.fixya.com/FAQexp.aspx

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

Aug 22, 2011 | FixYa Service

1 Answer

How to Rate a solution?


Follow this LINK and read the details about the FixYa's Rating System. Good Luck.
Thanks for using FixYa.

Jun 05, 2011 | FixYa Service

1 Answer

How are answered ranked? I see that some answers get more thumbs up than others but are still buried deep down. How does fixya sort the answers order?


Hi fixyamaster,The solutions that receive the most Thumbs Up are usually at the top. However, since the asker's vote is weighted proportionally higher in the displayed rating, a question that has actually received many Thumbs Ups from other users will have a lower displayed rating if the asker gave it a low vote. See this Tip of mine for more details on our rating system: How FixYa's Ratings Work Please feel free to contact our Support Team directly at: http://www.fixya.com/contact

Mar 08, 2011 | FixYa Service

1 Answer

My rapid linear progression of ***** is 0% how to treat please?


I suggest you ask in a maths forum and give more details when you do.
Search for maths forums with google and choose one that you are comfortable with.
I hope I have been of help but please do not hesitate to ask if you have any further questions.
I appreciate your vote if you appreciate my reply.

Mar 02, 2011 | Websites

1 Answer

Why is it that I cannot apply for a premium expert position when in fact I rank as a GURU with 85.+ rating, and 31 votes? I think I am qualified.


Hi carloadrian, I don't see any reason why you shouldn't be able to apply as a Premium Expert. I will refer this issue to our QA Team, and they will look into why you cannot apply. Please feel free to contact our Support Team directly at: http://www.fixya.com/contact

Feb 02, 2011 | FixYa Service

3 Answers

Hey i am a member in fixya and i have posted 200 solutions,with 80% and 21 votes and i haven't received a mail from Fixya,so when would i receive it?


Hi There, I don't know what e-mail you are expecting. But specific questions that are not covered in the FAQ's can be addressed by the Support Team: http://www.fixya.com/contact She just got back from vacation so there is probably a healthy backlog. Be patient. She always gets to it. Best regards Mike

Jan 03, 2011 | FixYa Service

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Hello I jus received my passport and I noticed that my first name isn't spaced with my middle name! So it looks like this AshleyNicole Jones is this going to be a Problem when I travel


no problem. carry your I.D. with you as well if there are eyebrows raised.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

Sep 07, 2010 | Websites

1 Answer

FixYa rank not updated


When people dont rate your listing, it wont show up. I have answered a TON of questions, but they dont all have ratings yet.

on that note, dont forget to rate my solution :)

Feb 28, 2009 | FixYa Service

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