{"id":298,"date":"2020-01-15T22:00:39","date_gmt":"2020-01-15T13:00:39","guid":{"rendered":"https:\/\/obgyn.jp\/?p=298"},"modified":"2022-03-13T19:55:01","modified_gmt":"2022-03-13T10:55:01","slug":"r-ttest","status":"publish","type":"post","link":"https:\/\/obgyn.jp\/?p=298","title":{"rendered":"R \u306b\u3088\u308b\u72ec\u7acb2\u7fa4\u306e\u6bd4\u8f03"},"content":{"rendered":"\n<p><a href=\"https:\/\/stat.ethz.ch\/R-manual\/R-patched\/library\/stats\/html\/t.test.html\" rel=\"noopener noreferrer\" target=\"_blank\">t.test()<\/a> \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3001\u72ec\u7acb2\u7fa4\u3092\u6bd4\u8f03\u3059\u308b\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u306f Excel \u7b49\u3067\u4f5c\u6210\u3057\u305f CSV \u30d5\u30a1\u30a4\u30eb\u3092 R \u306b\u8aad\u307f\u8fbc\u3093\u3067\u5206\u6790\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u306f\u4fbf\u5b9c\u7684\u306b\u4ee5\u4e0b\u306e\u7c21\u5358\u306a\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u3001data \u3068\u3044\u3046\u5909\u6570\u306b\u683c\u7d0d\u3057\u3066\u304a\u304f\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"r\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">data = data.frame(\u624b\u8853\u65b9\u6cd5 = c(\"\u5185\u8996\u93e1\",\"\u958b\u8179\",\"\u958b\u8179\",\"\u5185\u8996\u93e1\",\"\u5185\u8996\u93e1\",\"\u5185\u8996\u93e1\",\"\u958b\u8179\",\"\u958b\u8179\"), \u624b\u8853\u6642\u9593 = c(60,50,100,90,30,40,80,90), \u51fa\u8840\u91cf = c(15,100,90,20,18,20,120,90))<\/pre>\n\n\n\n<p>data \u306e\u5185\u5bb9\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"r\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">data<\/pre>\n\n\n\n<p>\u624b\u8853\u65b9\u6cd5\uff08\u5185\u8996\u93e1\u304b\u958b\u8179\u304b\uff09\u306b\u3088\u3063\u3066 data \u30922\u7fa4\u306b\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"r\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">A = data[data$\u624b\u8853\u65b9\u6cd5 == \"\u5185\u8996\u93e1\",]\nB = data[data$\u624b\u8853\u65b9\u6cd5 == \"\u958b\u8179\",]<\/pre>\n\n\n\n<p>A \u7fa4\u3001B \u7fa4\u306e\u624b\u8853\u6642\u9593\u3068\u51fa\u8840\u91cf\u3092 Student t test \u3067\u6bd4\u8f03\u3059\u308b\u3002P \u5024\u3060\u3051\u3067\u306a\u304fA \u7fa4\u3001B \u7fa4\u305d\u308c\u305e\u308c\u306e\u5e73\u5747\u3084\u3001\u305d\u306e\u5dee\u306e\u4fe1\u983c\u533a\u9593\u7b49\u3082\u8a08\u7b97\u3055\u308c\u3066\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"r\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">t.test(A$\u624b\u8853\u6642\u9593, B$\u624b\u8853\u6642\u9593, var.equal = T) #\u624b\u8853\u6642\u9593\nt.test(A$\u51fa\u8840\u91cf, B$\u51fa\u8840\u91cf, var.equal = T) #\u51fa\u8840\u91cf<\/pre>\n\n\n\n<p>\u53e4\u5178\u7684\u306a Student t test \u4ee5\u5916\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"r\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">t.test(A$\u624b\u8853\u6642\u9593, B$\u624b\u8853\u6642\u9593) # Welch t test\nwilcox.test(A$\u624b\u8853\u6642\u9593, B$\u624b\u8853\u6642\u9593) # Wilcoxon rank sum test<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>t.test() \u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3001\u72ec\u7acb2\u7fa4\u3092\u6bd4\u8f03\u3059\u308b\u3002 \u901a\u5e38\u306f Excel \u7b49\u3067\u4f5c\u6210\u3057\u305f CSV \u30d5\u30a1\u30a4\u30eb\u3092 R \u306b\u8aad\u307f\u8fbc\u3093\u3067\u5206\u6790\u3059\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u306f\u4fbf\u5b9c\u7684\u306b\u4ee5\u4e0b\u306e\u7c21\u5358\u306a\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u3092\u4f5c\u6210\u3057\u3001data \u3068\u3044\u3046\u5909\u6570\u306b\u683c &hellip; <a href=\"https:\/\/obgyn.jp\/?p=298\" class=\"more-link\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">R \u306b\u3088\u308b\u72ec\u7acb2\u7fa4\u306e\u6bd4\u8f03<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[37],"class_list":["post-298","post","type-post","status-publish","format-standard","hentry","category-data-science","tag-r"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/298","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=298"}],"version-history":[{"count":11,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/298\/revisions"}],"predecessor-version":[{"id":1076,"href":"https:\/\/obgyn.jp\/index.php?rest_route=\/wp\/v2\/posts\/298\/revisions\/1076"}],"wp:attachment":[{"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obgyn.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}