[情報] WAR stat in baseball is complete nonse

作者: abc12812   2013-03-04 10:48:37
http://tinyurl.com/cnq2h2l
Was Mike Trout the best all-around player in baseball last year?
You kidding? Who doesn’t know that? No one combined offensive and defensive
skill to the extent he did. It’s barely a debatable topic.
So why is there no American League MVP plaque with his name on it sitting
atop a mantel somewhere, or, as was the case with one or two of Larry Bird’s
NBA prizes, perched on a refrigerator?
He didn’t win; that’s why. Miguel Cabrera did. And there are people out
there who consider this the dumbest decision since “Ordinary People”
emerged as Best Picture over “Raging Bull” for 1980.
Most of those people are quite taken with what is known in the trade as “
analytics.” Or “metrics.” They crunch numbers, and that’s it. To them,
voting for any baseball award is superfluous and perhaps even dangerous. I’
ll amend that. Voting is definitely dangerous. It’s what leads to such inane
decisions as Miguel Cabrera winning the American League MVP when Mike Trout
was so clearly and obviously and statistically the best player in the
American League.
There’s a war going on in baseball. Did you know that? If you came of
baseball age when a long game was 2:45, it was a failing of significant
proportion for a starting pitcher not to go nine, all World Series games
started at 1 p.m. local, and there was no such thing as a DH, you probably don
’t know it. But if your surest sign that spring is coming soon is the
appearance of “Baseball Prospectus” on your bookstore’s shelf, you are
already a soldier in this skirmish. In your mind, you stand for progress and
enlightenment. Speak to you not of “Triple Crowns.” You’d rather
rhapsodize about BABIP.
I come from that quaint generation of yesteryear, but I do respect the New
Math of baseball. This is no revisionist history, either. Check it out if you
like. I nominated Bill James for baseball sainthood many, many years ago. He
has influenced how we see the game and evaluate the participants (managers,
too) more than any single individual in the last century.
James taught us that batting average, by itself, is merely a curiosity, that
stolen bases are vastly overrated, and that where things are done (i.e. which
ballpark) is a critical component of any player or team evaluation, and he
opened our eyes to the immense value of a good leadoff man.
He has taught us that, well, a lot of things in baseball aren’t what they
seem.
He led a true revolution in baseball thinking and has performed a valuable
service. If Alexander Cartwright gets into the Hall of Fame for his 19th
century baseball contributions, then Bill James should go in for the ones he
made in the 20th.
But it turns out that baseball history is no different than world history.
Sometimes a revolution is ripped out of the hands of its original leaders and
commandeered by zealots who don’t know when to stop.
OK, OK, it took me a while, but I’m here. This is an official declaration of
war on, yup, WAR.
For those of you who don’t know, WAR stands for Wins Above Replacement. In “
Baseball Prospectus,” it is known as WARP, or Wins Above Replacement Player.
Same thing.
WAR is the stat de tutti stat for the baseball fans we affectionately refer
to as “seamheads.” WAR is believed to be the ultimate rating measurement of
a player, combining a variety of offensive and defensive computations (there
are also pitching stats) and then coming up with a number that allegedly
tells us all how many more wins per season said player is worth over, yeah .
. . here’s the problem.
It’s how much more Player X is worth than a player that doesn’t exist!
I wish I were making this up. I’m not. Here is the explanation for WAR/WARP
on page xiii of the 2013 “Baseball Prospectus”:
“WARP combines a player’s Batting Runs Above Average (derived from a player
’s True Average), BRR (Baserunning Runs), FRAA (Fielding Runs Above
Average), an adjustment based upon position played, and a credit from plate
appearances based upon the difference between the ‘replacement level’
(derived from looking at the quality of players added to a team’s roster
after the start of the season) and the league average.”
Got that?
Now, even if you are conversant with BRR and FRAA, there remains one little
problem in accepting the notion that WAR is a relevant tool with which to
evaluate and separate players.
It’s ultimately based on a judgment. It’s not a statistic!
This “replacement player” who constitutes the very linchpin of the entire
premise is mythical. There is nothing measurable or precise about his
existence. Yet supposedly intelligent people have signed off on this utterly
bogus piece of baseball idiocy.
Let’s go back to Trout vs. Cabrera.
Central to any MVP argument involving position player vs. position player (as
opposed to the always fruitless endeavors of position player vs. pitcher vs.
relief pitcher) is how one interprets the word “valuable.” We could debate
that one until the Pirates win another World Series.
Trout was a better pure baseball player in 2012 than Cabrera. Until his legs
fall off, he always will be. But Cabrera is now baseball’s best hitter, and
the Tigers aren’t very deep in quality bats. He meant a whole heck of a lot
to his team, even if he was no threat to win a Gold Glove. His OPS (on-base
percentage plus slugging percentage) was .999. That’s pretty good.
Trout’s OPS was .963. He was an absurdly productive baserunner (start with
49 of 54 in stolen bases and go from there). You could have produced a Top 25
reel of highlight catches. Adjustments? He hit better in his third at-bats
than in his first two.
I’ve always been more of a Player of the Year guy. I would have voted for
Mike Trout.
But it’s not because his WAR (9.1) was better than Cabrera’s (6.6). If I’m
going to deal with a stat, I prefer a stat that is actually a stat, not a
shaky opinion.
WAR is nonsense. I urge General James to get control of his troops.
作者: catsondbs (貓仔)   2013-03-04 10:59:00
前天Tango也寫過一篇顯淺入門解釋replacement level的文
作者: catsondbs (貓仔)   2013-03-04 11:02:00
去年都戰這麼久了 這個人3月才寫這篇文不會有點遲嗎 XD
作者: j07242054 (啾啾)   2013-03-04 11:13:00
這什麼時候都可以戰的主題好嗎
作者: jww (白小白)   2013-03-04 12:06:00
挺沒意義的一篇,反對也沒有個好理由去支持他的說帖
作者: gn02530640   2013-03-04 13:05:00
我大概看得懂作者想表達的意義,但我不知道該怎麼評論
作者: gn02530640   2013-03-04 13:07:00
如果我的理解是對的話,作者是想說"WAR是將球員和根本
作者: gn02530640   2013-03-04 13:08:00
不存在的replacement player比較並加以換算,他不認同
作者: gn02530640   2013-03-04 13:11:00
這種方法是統計,頂多只能算是主觀判斷
作者: gn02530640   2013-03-04 13:12:00
我不懂統計,我也不知道作者這樣寫有沒有道理...
作者: nickyang (肌腱炎者少打字)   2013-03-04 13:19:00
沒有,超弱的
作者: maxspeed150 (聽說茉夏分手了)   2013-03-04 13:43:00
真的沒有.....
作者: mepass (努力浪費人生)   2013-03-04 17:19:00
很無聊 選在這時候發跟十月來發有差別嗎
作者: Kinra (喵天使)   2013-03-04 20:40:00
沒關係,作者也不懂統計……
作者: CGary (下雨天也挺浪漫的)   2013-03-04 21:09:00
他這種文章真的只能3月發... 有料戰文那段時間發根本沒有任何人會鳥他...
作者: jww (白小白)   2013-03-04 21:57:00
這種東西就像質化、量化報告一樣,每個人都有偏好的內容,但是
作者: julians (哞哞)   2013-03-04 22:04:00
it's making fuss about nothing

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