真的有人拿球去測彈性係數了! - 棒球
By Enid
at 2020-05-16T01:19
at 2020-05-16T01:19
Table of Contents
先說結論: 3%其實也不少了
提供韓職的數據
2019 COR: 0.4034-0.4234 (韓職COR測試方式跟中職不同)
過去 COR: 0.4134-0.4374
差距: 2.49%-3.31%
韓職 2019 HR數: 1022支
韓職 2018 HR數: 1756支
大約平均每場少1支全壘打
彈性係數差3%真的差蠻多的
附帶一提影片中測出來中職球回彈速度比小聯盟快了7%......
※ 引述《foreverthink (曹雞拜振恰倪嵐)》之銘言:
: 剛有人講0.54-0.58差距太大
: 中華職棒用球在0.56
: 測試樣本足夠的話
: 在常態分佈裡
: 大概抓個正負3%是合理範圍
: 0.56-0.017=0.543(無條件捨去最後ㄧ數)
: 0.56+0.017=0.577(無條件進入)
: 0.54~0.58其實是合理的範圍
: 其實馮勝賢講得其實合情合理
: 若要看更仔細一點的話
: 要用中位數跟平均數來判斷
: 最後
: 難道承認中職打者屌打MLB很難嗎?
--
提供韓職的數據
2019 COR: 0.4034-0.4234 (韓職COR測試方式跟中職不同)
過去 COR: 0.4134-0.4374
差距: 2.49%-3.31%
韓職 2019 HR數: 1022支
韓職 2018 HR數: 1756支
大約平均每場少1支全壘打
彈性係數差3%真的差蠻多的
附帶一提影片中測出來中職球回彈速度比小聯盟快了7%......
※ 引述《foreverthink (曹雞拜振恰倪嵐)》之銘言:
: 剛有人講0.54-0.58差距太大
: 中華職棒用球在0.56
: 測試樣本足夠的話
: 在常態分佈裡
: 大概抓個正負3%是合理範圍
: 0.56-0.017=0.543(無條件捨去最後ㄧ數)
: 0.56+0.017=0.577(無條件進入)
: 0.54~0.58其實是合理的範圍
: 其實馮勝賢講得其實合情合理
: 若要看更仔細一點的話
: 要用中位數跟平均數來判斷
: 最後
: 難道承認中職打者屌打MLB很難嗎?
--
Tags:
棒球
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