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4 factors in boxscores
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cherokee_ACB



Joined: 22 Mar 2006
Posts: 157

PostPosted: Sun Oct 26, 2008 3:43 pm    Post subject: Re: I've been crunching numbers by hand and these don't jive Reply with quote

easygojoe wrote:

My computations that I've been doing by hand don't jive with the numbers on the box scores. And actually, the numbers on Ybox scores and ESPN box scores are noticeably different. For example: http://sports.espn.go.com/nba/boxscore?gameId=281024013 and
http://sports.yahoo.com/nba/boxscore?gid=2008102413


This is due to team turnovers, which ESPN reports, but Y! doesn't. In this case, there was a shot-clock violation from OKT. This impacts pace, Eff and TOr.

Quote:

That in itself is not such a big deal, but I guess is there a link or something where I can see how you compute your numbers? If not that, I will detail how I've been coming up with my numbers and perhaps you can tell me where I am going wrong. To get possessions I am: FGA-OR+TO +(.44xFTA). I should be able to do this for both teams and see each's pace. You apparently average the two.


Right. I use the same formula and average both teams, but then multiply by a 0.976 factor and round to the nearest integer. The 0.976 factor comes from the "A Starting Point for Analyzing Basketball Statistics" paper
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easygojoe



Joined: 24 Oct 2008
Posts: 9

PostPosted: Sun Oct 26, 2008 4:10 pm    Post subject: Thanks very much. Reply with quote

I appreciate you taking the time to get me on the right path. I was able to download a pdf of the paper you linked to and will get busy digesting it.

Thanks again so much Cherokee.

Joe
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Ben F.



Joined: 07 Mar 2005
Posts: 391

PostPosted: Tue Oct 28, 2008 7:43 pm    Post subject: Reply with quote

The ESPN version doesn't seem to be working for me while the game is going, which was a neat feature last year. Not a huge deal but if you had some extra time I would really appreciate it.
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cherokee_ACB



Joined: 22 Mar 2006
Posts: 157

PostPosted: Sat Nov 01, 2008 8:36 am    Post subject: Reply with quote

Ben F. wrote:
The ESPN version doesn't seem to be working for me while the game is going, which was a neat feature last year. Not a huge deal but if you had some extra time I would really appreciate it.


Fixed. It was a small format change.
http://userscripts.org/scripts/show/7817
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Ben F.



Joined: 07 Mar 2005
Posts: 391

PostPosted: Sat Nov 01, 2008 6:55 pm    Post subject: Reply with quote

Awesome, thank you so much.
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Carlos



Joined: 21 Jan 2005
Posts: 64
Location: Montevideo, Uruguay

PostPosted: Sat Jan 10, 2009 8:59 am    Post subject: Reply with quote

Cherokee, I'm sorry for bothering you with this and believe me that we are all very appreciative of your work, but ESPN has introduced +/- into their boxscores and it has caused your script to cease to work. ¿Would it be possible to fix it?
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eyriq



Joined: 04 Jun 2008
Posts: 54
Location: Orlando

PostPosted: Sat Jan 10, 2009 12:13 pm    Post subject: Reply with quote

Carlos wrote:
Cherokee, I'm sorry for bothering you with this and believe me that we are all very appreciative of your work, but ESPN has introduced +/- into their boxscores and it has caused your script to cease to work. ¿Would it be possible to fix it?


+1 Please?
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bastillon



Joined: 04 Nov 2008
Posts: 55

PostPosted: Sat Jan 10, 2009 1:29 pm    Post subject: Reply with quote

Make it +2
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cherokee_ACB



Joined: 22 Mar 2006
Posts: 157

PostPosted: Sat Jan 10, 2009 7:23 pm    Post subject: Reply with quote

Thanks for pointing the problem. The fix was an easy one
http://userscripts.org/scripts/show/7817
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gabefarkas



Joined: 31 Dec 2004
Posts: 1313
Location: Durham, NC

PostPosted: Sun Jan 11, 2009 3:09 pm    Post subject: Reply with quote

Hi Cherokee,
I've been using your script for some time now, and there's a tweak I've made to it that I like, to add bolding to the team who "wins" each of the 4 factors.

I've replaced the following line (and all other similar lines)
Code:
tdAux.textContent = efgH.toFixed(1) + "%";

With the following code (changing the variable for each of the factors)
Code:

    if (efgH > efgA) {
        bold = doc.createElement("b");
        bold.textContent = efgH.toFixed(1) + "%";
        tdAux.appendChild(bold);
    }
    else {  tdAux.textContent = efgH.toFixed(1) + "%";
    }


I find it easier to quickly glance at the Four Factors and tell who did better in what by looking at which of the numbers are in bold. For example, in a close game like this, I can quickly see the Bucks did better in eFG and TOr, while the T-Wolves did better in OR% and FT/FG.

For TOr, obviously I changed it to "if (torH < torA)" for the Home Team, to get the team with fewer turnovers.


I hope this is OK. I just thought I'd mention it to you in case you also liked it.
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erivera7



Joined: 19 Jan 2009
Posts: 181
Location: Chicago, IL

PostPosted: Mon Jan 19, 2009 6:31 pm    Post subject: Reply with quote

First-time poster here!

Thanks so much for this neat, valuable too. Definitely beats the generic box scores one has to deal with on a daily basis. Well done with the script!
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@erivera7
I cover the Orlando Magic - Magic Basketball
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eyriq



Joined: 04 Jun 2008
Posts: 54
Location: Orlando

PostPosted: Tue Jan 20, 2009 1:32 pm    Post subject: Reply with quote

Hey, thanks for the fix!
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RobbieStats



Joined: 18 Dec 2007
Posts: 14
Location: Tobacco Road, NC

PostPosted: Thu Jan 22, 2009 8:23 pm    Post subject: Four Factors on StatSheet Reply with quote

The Four Factors and other tempo-free stats are available with StatSheet boxscores:

College Basketball:
http://statsheet.com/mcb/games/2009/01/21/2009-01-21_clemson_vs_north-carolina

NBA:
http://statsheet.com/nba/games/2009/01/15/cleveland-cavaliers-93-chicago-bulls-102

A lot of work still to do...
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expertcapper



Joined: 03 Feb 2009
Posts: 2

PostPosted: Tue Feb 10, 2009 9:10 pm    Post subject: Reply with quote

Hey there very good work..i have firefox 3.0.6 and for some reason i can only see one team pace calculation, I cannot see the other? Do i have a newer firefox?
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expertcapper



Joined: 03 Feb 2009
Posts: 2

PostPosted: Tue Feb 10, 2009 9:31 pm    Post subject: Reply with quote

Also, I noticed pace of 85 for a game and they had already scored 89 in the actual game..so i figure this does not take into consideration the actual score? Is it possible to program this using the pace and other 3 factors to determine how much each team will end up scoring at the end of the game?
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