FanGraphs Baseball

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  1. Awesome! The FIP constant has been something I’ve always wanted available.

    Comment by Bryz — April 23, 2012 @ 12:32 pm

  2. Well I guess I can stop randomly plugging in other constants to try and reverse-engineer the formula.

    Avogadro’s number got me a touch closer than Planck’s constant. Graham’s number was the least useful.

    Comment by Ludwig von Koopa — April 23, 2012 @ 12:45 pm

  3. Or even reverse-engineer the constants.

    Comment by Ludwig von Koopa — April 23, 2012 @ 12:46 pm

  4. Fangraphs has guts and guts are enough!

    Comment by MikeS — April 23, 2012 @ 1:07 pm

  5. Could we also get a way to limit the data to a certain period of years (like 1902-2012 or 1993-2004). If its not to much work, it would be helpful.

    Comment by Jack — April 23, 2012 @ 1:16 pm

  6. Can you put in a link somewhere? Maybe from the library? If I’m not on my computer I’d like to be able to find it easily.

    Comment by Ben Hall — April 23, 2012 @ 2:00 pm

  7. Is there a place on the site this will be kept outside of this post? How do we access this from the homepage?

    Comment by debater12 — April 23, 2012 @ 2:02 pm

  8. whoa

    Comment by chiefglockandhummer — April 23, 2012 @ 2:41 pm

  9. this is really awesome.

    Comment by FreeRedbird — April 24, 2012 @ 12:25 am

  10. Is Reaching on Error included in wOBA?

    Comment by jrogers — April 24, 2012 @ 9:38 am

  11. So the FIP constant and other constants don’t vary between leagues within a given year?

    Comment by studes — April 24, 2012 @ 8:30 pm

  12. You can calculate them specifically by league. I’m not sure what they look like for wOBA, but I do know that it doesn’t really make much of a difference when you calculate FIP by league. When you use league ERA and league FIP the constants work out to be really similar.

    Comment by David Appelman — April 24, 2012 @ 9:27 pm

  13. We might interpret “really similar” differently. ;)

    Comment by studes — April 25, 2012 @ 10:58 am

  14. The average difference since 1950 has been .002 for AL and .003 for NL.

    With the maximum being about .15. In 1970 it was .2 and it’s never been more than .11 since 1980.

    Generally you want to add about .05 to AL pitchers and subtract .05 from NL pitchers if you do it by league, but that’s not always the case.

    Comment by David Appelman — April 25, 2012 @ 11:17 am

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