多算數學,打得更好!! - 魔法風雲會

By Iris
at 2012-12-18T19:46
at 2012-12-18T19:46
Table of Contents
我做了一個比較複雜的方法,來估算關鍵牌在對方手上的機率
這個方法須要比較多的運算,所以可能不太有參考價值
但如果想要得到比較準確的機率,則建議使用這種算法
1. 估計對手關鍵牌的張數,這部分跟文章內的說法一樣
2. 關鍵牌為兩張時,以10%做為基本機率
接下來關鍵牌每多兩張,將這個機率加上以2%遞減的機率
兩張:10%
四張:10% + 8% = 18%
六張:10% + 8% + 6% = 24%
八張:10% + 8% + 6% + 4% = 28%
十張:10% + 8% + 6% + 4% + 2% = 30%
十二張以上,可以通通當成30%
對手手牌為奇數時,單純地採用前後平均就可以了
3. 將這個機率加上 1% x 關鍵牌張數 x (對手手牌數減一)
列表如下:
關鍵牌張數
2 4 6 8 10 12
1 10% 18% 24% 28% 30% 30%
對 2 12% 22% 30% 36% 40% 42%
手 3 14% 26% 36% 44% 50% 54%
手 4 16% 30% 42% 52% 60% 66%
牌 5 18% 34% 48% 60% 70% 78%
數 6 20% 38% 54% 68% 80% 90%
7 22% 42% 60% 76% 90% 102%
比較一下與超幾何分布的差異:
關鍵牌張數
2 4 6 8 10 12
對 2 +4% +6% +6% +5% +2% -3%
手
手 4 0% -1% -1% +2% -3% -5%
牌
數 6 -4% -5% -4% -2% -2% -5%
是的,這個方法的好處是誤差不會太大,尤其是在手牌數/關鍵張數中等的時候
但壞處是在對手手牌少時會高估機率,對手手牌多時會低估機率
最極端的就是一張和兩張手牌時,理論上機率應該要差不多兩倍
但估算的結果會和兩倍有一段差距
這個方法最大的優勢在於,當你要預測機率在50%以上或以下時非常有用
至於20%或30%的機率值不值得冒險,這就不是數學的問題,而是男人的問題了
--
這個方法須要比較多的運算,所以可能不太有參考價值
但如果想要得到比較準確的機率,則建議使用這種算法
1. 估計對手關鍵牌的張數,這部分跟文章內的說法一樣
2. 關鍵牌為兩張時,以10%做為基本機率
接下來關鍵牌每多兩張,將這個機率加上以2%遞減的機率
兩張:10%
四張:10% + 8% = 18%
六張:10% + 8% + 6% = 24%
八張:10% + 8% + 6% + 4% = 28%
十張:10% + 8% + 6% + 4% + 2% = 30%
十二張以上,可以通通當成30%
對手手牌為奇數時,單純地採用前後平均就可以了
3. 將這個機率加上 1% x 關鍵牌張數 x (對手手牌數減一)
列表如下:
關鍵牌張數
2 4 6 8 10 12
1 10% 18% 24% 28% 30% 30%
對 2 12% 22% 30% 36% 40% 42%
手 3 14% 26% 36% 44% 50% 54%
手 4 16% 30% 42% 52% 60% 66%
牌 5 18% 34% 48% 60% 70% 78%
數 6 20% 38% 54% 68% 80% 90%
7 22% 42% 60% 76% 90% 102%
比較一下與超幾何分布的差異:
關鍵牌張數
2 4 6 8 10 12
對 2 +4% +6% +6% +5% +2% -3%
手
手 4 0% -1% -1% +2% -3% -5%
牌
數 6 -4% -5% -4% -2% -2% -5%
是的,這個方法的好處是誤差不會太大,尤其是在手牌數/關鍵張數中等的時候
但壞處是在對手手牌少時會高估機率,對手手牌多時會低估機率
最極端的就是一張和兩張手牌時,理論上機率應該要差不多兩倍
但估算的結果會和兩倍有一段差距
這個方法最大的優勢在於,當你要預測機率在50%以上或以下時非常有用
至於20%或30%的機率值不值得冒險,這就不是數學的問題,而是男人的問題了
--
Tags:
魔法風雲會
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