{"id":1442,"date":"2023-07-26T09:25:06","date_gmt":"2023-07-26T09:25:06","guid":{"rendered":"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/"},"modified":"2023-07-26T09:25:06","modified_gmt":"2023-07-26T09:25:06","slug":"coklu-r-vs-r-kare","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/","title":{"rendered":"R \u00e7oklu veya r kare: fark nedir?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u00c7o\u011fu istatistiksel yaz\u0131l\u0131m\u0131 kullanarak bir <a href=\"https:\/\/statorials.org\/tr\/coklu-dogrusal-regresyon\/\" target=\"_blank\" rel=\"noopener\">regresyon modelini<\/a> uydurdu\u011funuzda, sonu\u00e7ta genellikle a\u015fa\u011f\u0131daki iki de\u011feri fark edeceksiniz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\u00c7oklu R:<\/strong> \u00dc\u00e7 veya daha fazla de\u011fi\u015fken aras\u0131ndaki \u00e7oklu korelasyon katsay\u0131s\u0131.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>R-Kare:<\/strong> (\u00c7oklu R) <sup>2<\/sup> olarak hesaplan\u0131r ve bir regresyon modelinin <a href=\"https:\/\/statorials.org\/tr\/degiskenleri-aciklayici-yanitlar\/\" target=\"_blank\" rel=\"noopener\">yan\u0131t de\u011fi\u015fkenindeki<\/a> yorday\u0131c\u0131 de\u011fi\u015fkenler taraf\u0131ndan a\u00e7\u0131klanabilen varyans\u0131n oran\u0131n\u0131 temsil eder. Bu de\u011fer 0 ile 1 aras\u0131nda de\u011fi\u015fmektedir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Pratikte R-kare de\u011feriyle s\u0131kl\u0131kla ilgileniriz \u00e7\u00fcnk\u00fc bu bize yorday\u0131c\u0131 de\u011fi\u015fkenlerin yan\u0131t de\u011fi\u015fkeninin de\u011ferini tahmin etmede ne kadar yararl\u0131 oldu\u011funu anlat\u0131r.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ancak modele her yeni yorday\u0131c\u0131 de\u011fi\u015fken ekledi\u011fimizde, yorday\u0131c\u0131 de\u011fi\u015fken kullan\u0131\u015fl\u0131 olmasa bile R-karenin artmas\u0131 garanti edilir.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>D\u00fczeltilmi\u015f R-kare,<\/strong> bir regresyon modelindeki \u00f6ng\u00f6r\u00fcc\u00fclerin say\u0131s\u0131n\u0131 ayarlayan, R-karenin de\u011fi\u015ftirilmi\u015f bir versiyonudur. A\u015fa\u011f\u0131daki \u015fekilde hesaplan\u0131r:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>D\u00fczeltilmi\u015f R <sup>2<\/sup> = 1 \u2013 [(1-R <sup>2<\/sup> )*(n-1)\/(nk-1)]<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>R <sup>2<\/sup><\/strong> : Modelin R <sup>2&#8217;si<\/sup><\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>n<\/strong> : G\u00f6zlem say\u0131s\u0131<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>k<\/strong> : Tahmin de\u011fi\u015fkenlerinin say\u0131s\u0131<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Bir modele daha fazla \u00f6ng\u00f6r\u00fcc\u00fc ekledik\u00e7e R-kare her zaman artt\u0131\u011f\u0131ndan, d\u00fczeltilmi\u015f R-kare <em>, bir modeldeki \u00f6ng\u00f6r\u00fcc\u00fclerin say\u0131s\u0131na g\u00f6re ayarlanarak<\/em> , bir modelin ne kadar yararl\u0131 oldu\u011funu s\u00f6yleyen bir \u00f6l\u00e7\u00fcm g\u00f6revi g\u00f6rebilir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu terimlerin her birini daha iyi anlamak i\u00e7in a\u015fa\u011f\u0131daki \u00f6rne\u011fi inceleyin.<\/span><\/p>\n<h3> <strong>\u00d6rnek: \u00c7oklu R, R-kare ve d\u00fczeltilmi\u015f R-kare<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">12 farkl\u0131 \u00f6\u011frenci i\u00e7in a\u015fa\u011f\u0131daki \u00fc\u00e7 de\u011fi\u015fkeni i\u00e7eren a\u015fa\u011f\u0131daki veri setine sahip oldu\u011fumuzu varsayal\u0131m:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14253 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/multipler_vs_rsquared1.png\" alt=\"\" width=\"268\" height=\"260\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Tahmin edici de\u011fi\u015fkenler olarak <em>\u00e7al\u0131\u015fma saatlerini<\/em> ve <em>mevcut notu<\/em> ve yan\u0131t de\u011fi\u015fkeni olarak <em>s\u0131nav puan\u0131n\u0131<\/em> kullanarak \u00e7oklu do\u011frusal regresyon modeli uygulad\u0131\u011f\u0131m\u0131z\u0131 ve a\u015fa\u011f\u0131daki sonucu elde etti\u011fimizi varsayal\u0131m:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14254\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/multipler_vs_rsquared2.png\" alt=\"\u00c7oklu R ve R-kare\" width=\"501\" height=\"339\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00fc\u00e7 metri\u011fin de\u011ferlerini g\u00f6zlemleyebiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>\u00c7oklu R: 0,978<\/strong> . Bu, yan\u0131t de\u011fi\u015fkeni ile iki yorday\u0131c\u0131 de\u011fi\u015fken aras\u0131ndaki \u00e7oklu korelasyonu temsil eder.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>R Kare: 0,956<\/strong> . Bu, (\u00c7oklu R) <sup>2<\/sup> = (0,978) <sup>2<\/sup> = 0,956 olarak hesaplan\u0131r. Bu bize, s\u0131nav puanlar\u0131ndaki farkl\u0131l\u0131\u011f\u0131n %95,6&#8217;s\u0131n\u0131n \u00f6\u011frencilerin ders \u00e7al\u0131\u015fmak i\u00e7in harcad\u0131klar\u0131 saat say\u0131s\u0131 ve dersteki mevcut notlar\u0131yla a\u00e7\u0131klanabilece\u011fini s\u00f6yl\u00fcyor.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>D\u00fczeltilmi\u015f R-kare: 0,946<\/strong> . Bu \u015fu \u015fekilde hesaplan\u0131r:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>D\u00fczeltilmi\u015f R <sup>2<\/sup><\/strong> = 1 \u2013 [(1-R <sup>2<\/sup> )*(n-1)\/(nk-1)] = 1 \u2013 [(1-.956)*(12-1)\/(12-2-1) ] = 0,946.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu, <em>modeldeki \u00f6ng\u00f6r\u00fcc\u00fc de\u011fi\u015fkenlerin say\u0131s\u0131na g\u00f6re ayarlanan<\/em> R-kare de\u011ferini temsil eder.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu \u00f6l\u00e7\u00fcm, \u00f6rne\u011fin ba\u015fka bir regresyon modelini 10 \u00f6ng\u00f6r\u00fcc\u00fcyle e\u015fle\u015ftirirsek ve bu modelin d\u00fczeltilmi\u015f R-karesinin <strong>0,88<\/strong> oldu\u011funu bulursak faydal\u0131 olacakt\u0131r. Bu, yaln\u0131zca iki \u00f6ng\u00f6r\u00fcc\u00fcye sahip regresyon modelinin daha y\u00fcksek d\u00fczeltilmi\u015f R kare de\u011ferine sahip olmas\u0131 nedeniyle daha iyi oldu\u011funu g\u00f6sterir.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/tr\/coklu-dogrusal-regresyon\/\" target=\"_blank\" rel=\"noopener\">\u00c7oklu Do\u011frusal Regresyona Giri\u015f<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/iyi-r-kare-degeri\/\" target=\"_blank\" rel=\"noopener\">\u0130yi bir R-kare de\u011feri nedir?<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c7o\u011fu istatistiksel yaz\u0131l\u0131m\u0131 kullanarak bir regresyon modelini uydurdu\u011funuzda, sonu\u00e7ta genellikle a\u015fa\u011f\u0131daki iki de\u011feri fark edeceksiniz: \u00c7oklu R: \u00dc\u00e7 veya daha fazla de\u011fi\u015fken aras\u0131ndaki \u00e7oklu korelasyon katsay\u0131s\u0131. R-Kare: (\u00c7oklu R) 2 olarak hesaplan\u0131r ve bir regresyon modelinin yan\u0131t de\u011fi\u015fkenindeki yorday\u0131c\u0131 de\u011fi\u015fkenler taraf\u0131ndan a\u00e7\u0131klanabilen varyans\u0131n oran\u0131n\u0131 temsil eder. Bu de\u011fer 0 ile 1 aras\u0131nda de\u011fi\u015fmektedir. Pratikte R-kare [&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-1442","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 \u00e7oklu vs R kare: fark nedir? - Statoryaller<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde \u00c7oklu R ve R-kare aras\u0131ndaki fark 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\/coklu-r-vs-r-kare\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R \u00e7oklu vs R kare: fark nedir? - Statoryaller\" \/>\n<meta property=\"og:description\" content=\"Bu e\u011fitimde \u00c7oklu R ve R-kare aras\u0131ndaki fark bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T09:25:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/multipler_vs_rsquared1.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\/coklu-r-vs-r-kare\/\",\"url\":\"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/\",\"name\":\"R \u00e7oklu vs R kare: fark nedir? - Statoryaller\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/tr\/#website\"},\"datePublished\":\"2023-07-26T09:25:06+00:00\",\"dateModified\":\"2023-07-26T09:25:06+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/tr\/#\/schema\/person\/365dc158a39a7c8ae256355451e3de48\"},\"description\":\"Bu e\u011fitimde \u00c7oklu R ve R-kare aras\u0131ndaki fark bir \u00f6rnekle a\u00e7\u0131klanmaktad\u0131r.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/tr\/coklu-r-vs-r-kare\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Ev\",\"item\":\"https:\/\/statorials.org\/tr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"R \u00e7oklu veya r kare: fark nedir?\"}]},{\"@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. 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