{"id":3026,"date":"2023-07-19T14:05:33","date_gmt":"2023-07-19T14:05:33","guid":{"rendered":"https:\/\/statorials.org\/tr\/pythonda-korelasyon-testi\/"},"modified":"2023-07-19T14:05:33","modified_gmt":"2023-07-19T14:05:33","slug":"pythonda-korelasyon-testi","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/pythonda-korelasyon-testi\/","title":{"rendered":"Python&#39;da korelasyon testi nas\u0131l yap\u0131l\u0131r (\u00f6rnekle)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u0130ki de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi \u00f6l\u00e7menin bir yolu, iki de\u011fi\u015fken aras\u0131ndaki do\u011frusal ili\u015fkiyi \u00f6l\u00e7en <a href=\"https:\/\/statorials.org\/tr\/pearson-korelasyon-katsayisi-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pearson korelasyon katsay\u0131s\u0131n\u0131<\/a> kullanmakt\u0131r <em>.<\/em><\/span><\/p>\n<p> <span style=\"color: #000000;\">Her zaman -1 ile 1 aras\u0131nda bir de\u011fer al\u0131r; burada:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>-1<\/strong> tamamen negatif bir do\u011frusal korelasyonu g\u00f6sterir<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>0<\/strong> do\u011frusal korelasyonun olmad\u0131\u011f\u0131n\u0131 g\u00f6sterir<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>1<\/strong> m\u00fckemmel pozitif do\u011frusal korelasyonu g\u00f6sterir<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Bir korelasyon katsay\u0131s\u0131n\u0131n istatistiksel olarak anlaml\u0131 olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in kar\u015f\u0131l\u0131k gelen t-puan\u0131n\u0131 ve p-de\u011ferini hesaplayabilirsiniz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Korelasyon katsay\u0131s\u0131n\u0131n (r) t-puan\u0131n\u0131 hesaplama form\u00fcl\u00fc \u015f\u00f6yledir:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>t<\/strong> = r * \u221a <span style=\"border-top: 1px solid black;\">n-2<\/span> \/ \u221a <span style=\"border-top: 1px solid black;\">1-r <sup>2<\/sup><\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Daha sonra p de\u011feri, n-2 serbestlik derecesine sahip t da\u011f\u0131l\u0131m\u0131 i\u00e7in kar\u015f\u0131l\u0131k gelen iki kuyruklu p de\u011feri olarak hesaplan\u0131r.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek: Python&#8217;da Korelasyon Testi<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">\u0130ki de\u011fi\u015fken aras\u0131ndaki korelasyon katsay\u0131s\u0131n\u0131n istatistiksel olarak anlaml\u0131 olup olmad\u0131\u011f\u0131n\u0131 belirlemek i\u00e7in <strong>SciPy<\/strong> k\u00fct\u00fcphanesindeki <strong>pearsonr<\/strong> fonksiyonunu kullanarak Python&#8217;da bir korelasyon testi ger\u00e7ekle\u015ftirebilirsiniz.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu fonksiyon, iki de\u011fi\u015fken aras\u0131ndaki korelasyon katsay\u0131s\u0131n\u0131n yan\u0131 s\u0131ra iki kuyruklu p de\u011ferini de d\u00f6nd\u00fcr\u00fcr.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fin, Python&#8217;da a\u015fa\u011f\u0131daki iki tabloya sahip oldu\u011fumuzu varsayal\u0131m:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create two arrays\n<\/span>x = [3, 4, 4, 5, 7, 8, 10, 12, 13, 15]\ny = [2, 4, 4, 5, 4, 7, 8, 19, 14, 10]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Pearsonr<\/strong> fonksiyonunu i\u00e7e aktarabilir ve iki tablo aras\u0131ndaki Pearson korelasyon katsay\u0131s\u0131n\u0131 hesaplayabiliriz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">from<\/span> scipy. <span style=\"color: #3366ff;\">stats<\/span> . <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">import<\/span> pearsonr\n\n<span style=\"color: #008080;\">#calculation correlation coefficient and p-value between x and y<\/span>\npearsonr(x, y)\n\n(0.8076177030748631, 0.004717255828132089)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Sonucun nas\u0131l yorumlanaca\u011f\u0131 a\u015fa\u011f\u0131da a\u00e7\u0131klanm\u0131\u015ft\u0131r:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Pearson korelasyon katsay\u0131s\u0131 (r): <strong>0,8076<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">\u0130ki tarafl\u0131 p de\u011feri: <strong>0,0047<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Korelasyon katsay\u0131s\u0131n\u0131n 1&#8217;e yak\u0131n olmas\u0131 bize iki de\u011fi\u015fken aras\u0131nda g\u00fc\u00e7l\u00fc pozitif bir ili\u015fkinin oldu\u011funu g\u00f6stermektedir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Kar\u015f\u0131l\u0131k gelen p de\u011feri 0,05&#8217;ten k\u00fc\u00e7\u00fck oldu\u011fundan, iki de\u011fi\u015fken aras\u0131nda istatistiksel olarak anlaml\u0131 bir ili\u015fki oldu\u011fu sonucuna var\u0131yoruz.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Pearson<\/strong> fonksiyonundan bireysel korelasyon katsay\u0131s\u0131n\u0131 ve p-de\u011ferini de \u00e7\u0131karabilece\u011fimizi unutmay\u0131n:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#extract correlation coefficient (rounded to 4 decimal places)<\/span>\nr = round(pearsonr(x, y)[ <span style=\"color: #008000;\">0<\/span> ], 4)\n\n<span style=\"color: #008000;\">print<\/span> (r)\n\n0.8076\n\n<span style=\"color: #008080;\">#extract p-value (rounded to 4 decimal places)<\/span> \np = round(pearsonr(x, y)[ <span style=\"color: #008000;\">1<\/span> ], 4)\n\n<span style=\"color: #008000;\">print<\/span> (p) \n\n0.0047\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Bu de\u011ferlerin okunmas\u0131, orijinal <strong>pearsonr<\/strong> fonksiyonunun \u00e7\u0131kt\u0131s\u0131na k\u0131yasla biraz daha kolayd\u0131r.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki e\u011fitimler korelasyon katsay\u0131lar\u0131 hakk\u0131nda ek bilgi sa\u011flar:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/tr\/pearson-korelasyon-katsayisi-1\/\" target=\"_blank\" rel=\"noopener noreferrer\">Pearson Korelasyon Katsay\u0131s\u0131na Giri\u015f<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\" target=\"_blank\" rel=\"noopener\">\u201cG\u00fc\u00e7l\u00fc\u201d bir korelasyon olarak kabul edilen \u015fey nedir?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/pearson-korelasyon-hipotezleri\/\" target=\"_blank\" rel=\"noopener\">Pearson korelasyonunun be\u015f hipotezi<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0130ki de\u011fi\u015fken aras\u0131ndaki ili\u015fkiyi \u00f6l\u00e7menin bir yolu, iki de\u011fi\u015fken aras\u0131ndaki do\u011frusal ili\u015fkiyi \u00f6l\u00e7en Pearson korelasyon katsay\u0131s\u0131n\u0131 kullanmakt\u0131r . Her zaman -1 ile 1 aras\u0131nda bir de\u011fer al\u0131r; burada: -1 tamamen negatif bir do\u011frusal korelasyonu g\u00f6sterir 0 do\u011frusal korelasyonun olmad\u0131\u011f\u0131n\u0131 g\u00f6sterir 1 m\u00fckemmel pozitif do\u011frusal korelasyonu g\u00f6sterir Bir korelasyon katsay\u0131s\u0131n\u0131n istatistiksel olarak anlaml\u0131 olup olmad\u0131\u011f\u0131n\u0131 belirlemek [&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-3026","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>Python&#039;da Korelasyon Testi Nas\u0131l Yap\u0131l\u0131r (\u00d6rnekle) - Statorials<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde, bir \u00f6rnek de dahil olmak \u00fczere Python&#039;da bir deniz \u00e7iziminde birden fazla \u00e7izginin nas\u0131l \u00e7izilece\u011fi 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\/pythonda-korelasyon-testi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python&#039;da Korelasyon Testi Nas\u0131l Yap\u0131l\u0131r (\u00d6rnekle) - 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