{"author_url":"https://blog.hatena.ne.jp/bob3/","image_url":null,"type":"rich","provider_name":"Hatena Blog","blog_url":"https://bob3.hatenablog.com/","url":"https://bob3.hatenablog.com/entry/20051023/p1","author_name":"bob3","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbob3.hatenablog.com%2Fentry%2F20051023%2Fp1\" title=\"\u30e1\u30e2 - bob3\u2019s blog\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","title":"\u30e1\u30e2","published":"2005-10-23 00:00:00","blog_title":"bob3\u2019s blog","categories":["R"],"version":"1.0","width":"100%","description":"area <- 1:10 age <- 11:20 val <- 21:30 x <- data.frame(list(area=area,age=age,val=val)) x x$agen <- as.factor(ifelse(x$age<=15,\"lo\",\"hi\")) x t.out <- t.test(x$val~x$agen) t.out$p.value #\u95a2\u6570\u5316 nmeansd <- function(X,C) { cat(\"N=\",length(X[C]),\"\\t mean=\",mean(X[C]),\"\\t sd=\",sd(X[C]),\"\\n\") } #\u95a2\u6570\u5316\uff12\uff08\u4ed6\u306e\u95a2\u6570\u306a\u3069\u306b\u2026","provider_url":"https://hatena.blog"}