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覓語豢豌: 伎 覯伎 糾(Think Bayes), B. れ磯 讌 | 蟠覩 蟾 | 觜覩碁 p.21
蠏碁1 覦殊 30螳 豐貊貎 10螳螳 れ伎螻, 蠏碁2 覦殊れ 豐貊貎り 螳螳 20螳 れ . 襦 貎るゼ 讌 覦 貎れ. 蠏碁1 螳レ煙?
prior <- c(0.5, 0.5) names(prior) <- c("Bowl1", "Bowl2") Bowl1 <- c(30, 10) Bowl2 <- c(20, 20) names(Bowl1) <- c("B", "C") names(Bowl2) <- c("B", "C") Lik <- c(Bowl1["B"]/sum(Bowl1), Bowl2["B"]/sum(Bowl2)) names(Lik) <- c("Bowl1", "Bowl2") p1 <- (Lik["Bowl1"] * prior["Bowl1"]) / ((Bowl1["B"] + Bowl2["B"]) / sum(Bowl1 + Bowl2)) p2 <- (Lik["Bowl2"] * prior["Bowl2"]) / ((Bowl1["B"] + Bowl2["B"]) / sum(Bowl1 + Bowl2)) posterior <- c(p1, p2) names(posterior) <- c("Bowl1", "Bowl2") print(posterior)
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