{"id":906,"date":"2023-07-28T08:56:24","date_gmt":"2023-07-28T08:56:24","guid":{"rendered":"https:\/\/statorials.org\/tr\/r-kare-excel\/"},"modified":"2023-07-28T08:56:24","modified_gmt":"2023-07-28T08:56:24","slug":"r-kare-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/r-kare-excel\/","title":{"rendered":"Excel&#39;de r-kare nas\u0131l hesaplan\u0131r (\u00f6rneklerle)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Genellikle <sup>r2<\/sup> olarak yaz\u0131lan <strong>R-kare<\/strong> , <a href=\"https:\/\/statorials.org\/tr\/basit-dogrusal-regresyon-excel\/\" target=\"_blank\" rel=\"noopener\">do\u011frusal bir regresyon modelinin<\/a> bir veri k\u00fcmesine ne kadar iyi uydu\u011funun bir \u00f6l\u00e7\u00fcs\u00fcd\u00fcr.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Teknik a\u00e7\u0131dan, yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan a\u00e7\u0131klanabilen, yan\u0131t de\u011fi\u015fkenindeki varyans\u0131n oran\u0131d\u0131r.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><sup>r2&#8217;nin<\/sup> de\u011feri 0 ila 1 aras\u0131nda de\u011fi\u015febilir:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">0 de\u011feri, yan\u0131t de\u011fi\u015fkeninin yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan hi\u00e7bir \u015fekilde a\u00e7\u0131klanamayaca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/li>\n<li> <span style=\"color: #000000;\">1 de\u011feri, yan\u0131t de\u011fi\u015fkeninin yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan hatas\u0131z olarak m\u00fckemmel bir \u015fekilde a\u00e7\u0131klanabilece\u011fini g\u00f6sterir.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><strong>\u0130lgili:<\/strong> <a href=\"https:\/\/statorials.org\/tr\/iyi-r-kare-degeri\/\" target=\"_blank\" rel=\"noopener\">\u0130yi bir R-kare de\u011feri nedir?<\/a><\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu e\u011fitimde Excel&#8217;de iki de\u011fi\u015fken i\u00e7in <sup>r2&#8217;nin<\/sup> nas\u0131l hesaplanaca\u011f\u0131 a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>\u00d6rnek: Excel&#8217;de R Karenin Hesaplanmas\u0131<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">20 \u00f6\u011frenci i\u00e7in \u00e7al\u0131\u015f\u0131lan saat say\u0131s\u0131 ve al\u0131nan s\u0131nav puan\u0131na ili\u015fkin a\u015fa\u011f\u0131daki verilere sahip oldu\u011fumuzu varsayal\u0131m:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9664 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/rsquared_excel1.png\" alt=\"\" width=\"473\" height=\"470\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\u015eimdi, tahmin de\u011fi\u015fkeni olarak &#8220;saat&#8221;i ve yan\u0131t de\u011fi\u015fkeni olarak &#8220;puan&#8221;\u0131 kullanarak bu verilere basit bir do\u011frusal regresyon modeli uydurmak istedi\u011fimizi varsayal\u0131m.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu verinin <sup>r2&#8217;sini<\/sup> bulmak i\u00e7in Excel&#8217;de a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanan RSQ() fonksiyonunu kullanabiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>=RSQ(bilinen_ys, bilinen_xs)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>bilinen_ys:<\/strong> yan\u0131t de\u011fi\u015fkeninin de\u011ferleri<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>bilinen_xs:<\/strong> tahmin de\u011fi\u015fkeninin de\u011ferleri<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fimizde bu form\u00fcl \u015fu \u015fekilde g\u00f6r\u00fcn\u00fcyor:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9665 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/rsquared_excel2.png\" alt=\"Excel'de R Karesinin Hesaplanmas\u0131\" width=\"518\" height=\"491\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Bu \u00f6rnekte s\u0131nav puanlar\u0131ndaki de\u011fi\u015fimin <strong>%72,73&#8217;\u00fc<\/strong> \u00e7al\u0131\u015f\u0131lan saat say\u0131s\u0131yla a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu verilere <a href=\"https:\/\/statorials.org\/tr\/basit-dogrusal-regresyon-excel\/\" target=\"_blank\" rel=\"noopener\">basit bir do\u011frusal regresyon modeli<\/a> uygularsak sonucun \u015f\u00f6yle g\u00f6r\u00fcnece\u011fini unutmay\u0131n:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6288 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/simpleregressionexcel5.png\" alt=\"\" width=\"627\" height=\"349\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\u0130lk tablodaki R Kare de\u011ferinin <strong>0,7273<\/strong> oldu\u011funa dikkat edin; bu, <strong>RSQ()<\/strong> i\u015flevi kullan\u0131larak elde edilen sonu\u00e7tur.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki e\u011fitimlerde Excel&#8217;deki di\u011fer ortak g\u00f6revlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/tr\/r-kare-excel-ayarlamalari\/\" target=\"_blank\" rel=\"noopener\">Excel&#8217;de d\u00fczeltilmi\u015f R-kare nas\u0131l hesaplan\u0131r<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/excelde-sst-ssr-sse\/\" target=\"_blank\" rel=\"noopener\">Excel&#8217;de SST, SSR ve SSE nas\u0131l hesaplan\u0131r<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/excelde-artik-iz-nasil-olusturulur\/\" target=\"_blank\" rel=\"noopener\">Excel&#8217;de Art\u0131k Grafik Nas\u0131l Olu\u015fturulur<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Genellikle r2 olarak yaz\u0131lan R-kare , do\u011frusal bir regresyon modelinin bir veri k\u00fcmesine ne kadar iyi uydu\u011funun bir \u00f6l\u00e7\u00fcs\u00fcd\u00fcr. Teknik a\u00e7\u0131dan, yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan a\u00e7\u0131klanabilen, yan\u0131t de\u011fi\u015fkenindeki varyans\u0131n oran\u0131d\u0131r. r2&#8217;nin de\u011feri 0 ila 1 aras\u0131nda de\u011fi\u015febilir: 0 de\u011feri, yan\u0131t de\u011fi\u015fkeninin yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan hi\u00e7bir \u015fekilde a\u00e7\u0131klanamayaca\u011f\u0131n\u0131 g\u00f6sterir. 1 de\u011feri, yan\u0131t de\u011fi\u015fkeninin yorday\u0131c\u0131 de\u011fi\u015fken taraf\u0131ndan hatas\u0131z [&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-906","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>Excel&#039;de R-kare Nas\u0131l Hesaplan\u0131r (\u00d6rneklerle) - 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