{"id":1559,"date":"2023-07-25T21:38:06","date_gmt":"2023-07-25T21:38:06","guid":{"rendered":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/"},"modified":"2023-07-25T21:38:06","modified_gmt":"2023-07-25T21:38:06","slug":"rde-gunluk-siralama-testi","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/","title":{"rendered":"R&#39;de log rank testi nas\u0131l yap\u0131l\u0131r?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>Log-rank testi,<\/strong> iki grup aras\u0131ndaki hayatta kalma e\u011frilerini kar\u015f\u0131la\u015ft\u0131rman\u0131n en yayg\u0131n yoludur.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu test a\u015fa\u011f\u0131daki <a href=\"https:\/\/statorials.org\/tr\/hipotez-testi-1\/\" target=\"_blank\" rel=\"noopener\">varsay\u0131mlar\u0131<\/a> kullan\u0131r:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>H <sub>0<\/sub> :<\/strong> \u0130ki grup aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan fark yok.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>H <sub>A<\/sub> :<\/strong> \u0130ki grup aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan fark <em>var<\/em> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Testin <a href=\"https:\/\/statorials.org\/tr\/p-degerleri-istatistiksel-anlamlilik\/\" target=\"_blank\" rel=\"noopener\">p de\u011feri<\/a> belirli bir anlaml\u0131l\u0131k d\u00fczeyinin alt\u0131ndaysa (\u00f6rne\u011fin \u03b1 = 0,05), o zaman s\u0131f\u0131r hipotezini reddedebilir ve iki grup aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan bir fark oldu\u011funu s\u00f6ylemek i\u00e7in yeterli kan\u0131t oldu\u011fu sonucuna varabiliriz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">R&#8217;de bir log-rank testi ger\u00e7ekle\u015ftirmek i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan <strong>hayatta kalma<\/strong> paketindeki <strong>survdiff()<\/strong> i\u015flevini kullanabiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>survdiff(Surv(zaman, durum) ~ tahminciler, veriler)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu fonksiyon bir ki-kare testi istatisti\u011fi ve buna kar\u015f\u0131l\u0131k gelen bir p de\u011feri d\u00f6nd\u00fcr\u00fcr.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00f6rnek, R&#8217;de bir log-s\u0131ra testi ger\u00e7ekle\u015ftirmek i\u00e7in bu i\u015flevin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek: R&#8217;de G\u00fcnl\u00fck S\u0131ralamas\u0131 Testi<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Bu \u00f6rnek i\u00e7in <strong>hayatta kalma<\/strong> paketindeki <strong>yumurtal\u0131k<\/strong> veri setini kullanaca\u011f\u0131z. Bu veri seti 26 hastaya ili\u015fkin a\u015fa\u011f\u0131daki bilgileri i\u00e7ermektedir:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Yumurtal\u0131k kanseri te\u015fhisi konulduktan sonra hayatta kalma s\u00fcresi (ay cinsinden)<\/span><\/li>\n<li> <span style=\"color: #000000;\">Hayatta kalma s\u00fcresinin sans\u00fcrlenip sans\u00fcrlenmedi\u011fi<\/span><\/li>\n<li> <span style=\"color: #000000;\">Al\u0131nan tedavinin t\u00fcr\u00fc (rx = 1 veya rx = 2)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki kod, bu veri k\u00fcmesinin ilk alt\u0131 sat\u0131r\u0131n\u0131n nas\u0131l g\u00f6r\u00fcnt\u00fclenece\u011fini g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #993300;\">library<\/span> (survival)\n\n<span style=\"color: #008080;\">#view first six rows of dataset\n<\/span>head(ovarian)\n\n  futime fustat age resid.ds rx ecog.ps\n1 59 1 72.3315 2 1 1\n2 115 1 74.4932 2 1 1\n3 156 1 66.4658 2 1 2\n4 421 0 53.3644 2 2 1\n5,431 1 50.3397 2 1 1\n6 448 0 56.4301 1 1 2<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki kod, farkl\u0131 tedaviler alan hastalar aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan bir fark olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in log-s\u0131ra testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fini g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#perform log rank test\n<\/span>survdiff(Surv(futime, fustat) ~ rx, data=ovarian)\n\nCall:\nsurvdiff(formula = Surv(futime, fustat) ~ rx, data = ovarian)\n\n      N Observed Expected (OE)^2\/E (OE)^2\/V\nrx=1 13 7 5.23 0.596 1.06\nrx=2 13 5 6.77 0.461 1.06\n\n Chisq= 1.1 on 1 degrees of freedom, p= 0.3 \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ki-kare test istatisti\u011fi 1 serbestlik derecesi ile <b>1,1&#8217;dir<\/b> ve kar\u015f\u0131l\u0131k gelen p de\u011feri <strong>0,3&#8217;t\u00fcr<\/strong> . Bu p de\u011feri 0,05&#8217;ten k\u00fc\u00e7\u00fck olmad\u0131\u011f\u0131ndan s\u0131f\u0131r hipotezini reddedemiyoruz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ba\u015fka bir deyi\u015fle, iki tedavi aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan istatistiksel olarak anlaml\u0131 bir fark oldu\u011funu s\u00f6yleyecek yeterli kan\u0131t\u0131m\u0131z yok.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki s\u00f6zdizimini kullanarak her grup i\u00e7in hayatta kalma e\u011frilerini de \u00e7izebiliriz:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#plot survival curves for each treatment group\n<\/span>plot(survfit(Surv(futime, fustat) ~ rx, data = ovarian), \n     xlab = \" <span style=\"color: #008000;\">Time<\/span> \", \n     ylab = \u201c <span style=\"color: #008000;\">Overall survival probability<\/span> \u201d)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-15424 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logranktest1.png\" alt=\"R'de hayatta kalma e\u011frilerinin bir grafi\u011fi\" width=\"428\" height=\"390\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Hayatta kalma e\u011frilerinin biraz farkl\u0131 oldu\u011funu g\u00f6rebiliyoruz ancak log-rank testi bize fark\u0131n istatistiksel olarak anlaml\u0131 olmad\u0131\u011f\u0131n\u0131 g\u00f6sterdi.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Log-rank testi, iki grup aras\u0131ndaki hayatta kalma e\u011frilerini kar\u015f\u0131la\u015ft\u0131rman\u0131n en yayg\u0131n yoludur. Bu test a\u015fa\u011f\u0131daki varsay\u0131mlar\u0131 kullan\u0131r: H 0 : \u0130ki grup aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan fark yok. H A : \u0130ki grup aras\u0131nda hayatta kalma a\u00e7\u0131s\u0131ndan fark var . Testin p de\u011feri belirli bir anlaml\u0131l\u0131k d\u00fczeyinin alt\u0131ndaysa (\u00f6rne\u011fin \u03b1 = 0,05), o zaman s\u0131f\u0131r [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1559","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde R&#039;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r\" \/>\n<meta property=\"og:description\" content=\"Bu e\u011fitimde R&#039;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T21:38:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logranktest1.png\" \/>\n<meta name=\"author\" content=\"Dr.benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr.benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/\",\"url\":\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/\",\"name\":\"R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/tr\/#website\"},\"datePublished\":\"2023-07-25T21:38:06+00:00\",\"dateModified\":\"2023-07-25T21:38:06+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48\"},\"description\":\"Bu e\u011fitimde R&#39;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Ev\",\"item\":\"https:\/\/statorials.org\/tr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"R&#39;de log rank testi nas\u0131l yap\u0131l\u0131r?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/tr\/#website\",\"url\":\"https:\/\/statorials.org\/tr\/\",\"name\":\"Statorials\",\"description\":\"\u0130statistik okuryazarl\u0131\u011f\u0131 rehberiniz!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/tr\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"tr\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48\",\"name\":\"Dr.benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"tr\",\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr.benjamin anderson\"},\"description\":\"Merhaba, ben Benjamin, emekli bir istatistik profes\u00f6r\u00fc ve Statorials \u00f6\u011fretmenine d\u00f6n\u00fc\u015ft\u00fcm. \u0130statistik alan\u0131ndaki kapsaml\u0131 deneyimim ve uzmanl\u0131\u011f\u0131mla, \u00f6\u011frencilerimi Statorials arac\u0131l\u0131\u011f\u0131yla g\u00fc\u00e7lendirmek i\u00e7in bilgilerimi payla\u015fmaya can at\u0131yorum. Daha fazlas\u0131n\u0131 bil\",\"sameAs\":[\"https:\/\/statorials.org\/tr\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r","description":"Bu e\u011fitimde R&#39;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/","og_locale":"tr_TR","og_type":"article","og_title":"R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r","og_description":"Bu e\u011fitimde R&#39;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.","og_url":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/","og_site_name":"Statorials","article_published_time":"2023-07-25T21:38:06+00:00","og_image":[{"url":"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logranktest1.png"}],"author":"Dr.benjamin anderson","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Dr.benjamin anderson","Tahmini okuma s\u00fcresi":"2 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/","url":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/","name":"R - Statorialsde G\u00fcnl\u00fck S\u0131ralamas\u0131 testi nas\u0131l yap\u0131l\u0131r","isPartOf":{"@id":"https:\/\/statorials.org\/tr\/#website"},"datePublished":"2023-07-25T21:38:06+00:00","dateModified":"2023-07-25T21:38:06+00:00","author":{"@id":"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48"},"description":"Bu e\u011fitimde R&#39;de log-rank testinin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.","breadcrumb":{"@id":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/#breadcrumb"},"inLanguage":"tr","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/tr\/rde-gunluk-siralama-testi\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Ev","item":"https:\/\/statorials.org\/tr\/"},{"@type":"ListItem","position":2,"name":"R&#39;de log rank testi nas\u0131l yap\u0131l\u0131r?"}]},{"@type":"WebSite","@id":"https:\/\/statorials.org\/tr\/#website","url":"https:\/\/statorials.org\/tr\/","name":"Statorials","description":"\u0130statistik okuryazarl\u0131\u011f\u0131 rehberiniz!","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/statorials.org\/tr\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"tr"},{"@type":"Person","@id":"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48","name":"Dr.benjamin anderson","image":{"@type":"ImageObject","inLanguage":"tr","@id":"https:\/\/statorials.org\/tr\/#\/schema\/person\/image\/","url":"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg","contentUrl":"https:\/\/statorials.org\/tr\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg","caption":"Dr.benjamin anderson"},"description":"Merhaba, ben Benjamin, emekli bir istatistik profes\u00f6r\u00fc ve Statorials \u00f6\u011fretmenine d\u00f6n\u00fc\u015ft\u00fcm. \u0130statistik alan\u0131ndaki kapsaml\u0131 deneyimim ve uzmanl\u0131\u011f\u0131mla, \u00f6\u011frencilerimi Statorials arac\u0131l\u0131\u011f\u0131yla g\u00fc\u00e7lendirmek i\u00e7in bilgilerimi payla\u015fmaya can at\u0131yorum. Daha fazlas\u0131n\u0131 bil","sameAs":["https:\/\/statorials.org\/tr"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/posts\/1559","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/comments?post=1559"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/posts\/1559\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/media?parent=1559"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/categories?post=1559"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/tr\/wp-json\/wp\/v2\/tags?post=1559"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}