{"id":940,"date":"2023-07-28T06:10:31","date_gmt":"2023-07-28T06:10:31","guid":{"rendered":"https:\/\/statorials.org\/tr\/guven-araligini-cizin-r\/"},"modified":"2023-07-28T06:10:31","modified_gmt":"2023-07-28T06:10:31","slug":"guven-araligini-cizin-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/guven-araligini-cizin-r\/","title":{"rendered":"R&#39;de bir g\u00fcven aral\u0131\u011f\u0131 nas\u0131l \u00e7izilir"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/tr\/guvenilirlik-araligi\/\" target=\"_blank\" rel=\"noopener noreferrer\">G\u00fcven aral\u0131\u011f\u0131,<\/a> belirli bir g\u00fcven d\u00fczeyine sahip bir pop\u00fclasyon parametresini i\u00e7ermesi muhtemel bir de\u011fer aral\u0131\u011f\u0131d\u0131r.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bu e\u011fitimde, R&#8217;deki bir veri k\u00fcmesi i\u00e7in g\u00fcven aral\u0131\u011f\u0131n\u0131n nas\u0131l \u00e7izilece\u011fi a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n<h3> <strong>\u00d6rnek: R&#8217;de bir g\u00fcven aral\u0131\u011f\u0131 \u00e7izmek<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">R&#8217;de 100 sat\u0131r ve 2 s\u00fctundan olu\u015fan a\u015fa\u011f\u0131daki veri k\u00fcmesine sahip oldu\u011fumuzu varsayal\u0131m:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible<\/span>\nset.seed(0)\n\n<span style=\"color: #008080;\">#create dataset<\/span>\nx &lt;- rnorm(100)\ny &lt;- x*2 + rnorm(100)\ndf &lt;- data.frame(x = x, y = y)\n\n<span style=\"color: #008080;\">#view first six rows of dataset<\/span>\nhead(df)\n\n           xy\n1 1.2629543 3.3077678\n2 -0.3262334 -1.4292433\n3 1.3297993 2.0436086\n4 1.2724293 2.5914389\n5 0.4146414 -0.3011029\n6 -1.5399500 -2.5031813\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">X ve y aras\u0131ndaki ili\u015fkinin grafi\u011fini olu\u015fturmak i\u00e7in \u00f6ncelikle do\u011frusal bir regresyon modelini yerle\u015ftirebiliriz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>model &lt;- lm(y ~ x, data = df)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Daha sonra, ger\u00e7ek g\u00fcven bantlar\u0131n\u0131 olu\u015fturmak i\u00e7in abline() i\u015flevini velines() i\u015flevini kullanarak tahmini do\u011frusal regresyon \u00e7izgisinin bir grafi\u011fini olu\u015fturabiliriz:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#get predicted y values using regression equation<\/span>\nnewx &lt;- seq(min(df$x), max(df$x), length.out=100)\npreds &lt;- predict(model, newdata = data.frame(x=newx), interval = 'confidence')\n\n<span style=\"color: #008080;\">#create plot of x vs. y, but don't display individual points (type='n')<\/span> \nplot(y ~ x, data = df, type = 'n')\n<span style=\"color: #008080;\">\n#add fitted regression line<\/span>\nabline(model)\n\n<span style=\"color: #008080;\">#add dashed lines for confidence bands\n<\/span>lines(newx, preds[,3], lty = 'dashed', col = 'blue')\nlines(newx, preds[,2], lty = 'dashed', col = 'blue')<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9946 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotconfintr1.png\" alt=\"R'de bir g\u00fcven aral\u0131\u011f\u0131 \u00e7izmek\" width=\"454\" height=\"414\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Siyah \u00e7izgi, yerle\u015ftirilmi\u015f do\u011frusal regresyon \u00e7izgisini g\u00f6sterirken iki kesikli mavi \u00e7izgi, g\u00fcven aral\u0131klar\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u0130ste\u011fe ba\u011fl\u0131 olarak, a\u015fa\u011f\u0131daki kodu kullanarak g\u00fcven aral\u0131\u011f\u0131 \u00e7izgileri ile tahmini do\u011frusal regresyon \u00e7izgisi aras\u0131ndaki alan\u0131 da doldurabilirsiniz:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create plot of x vs. y<\/span>\nplot(y ~ x, data = df, type = 'n')\n<span style=\"color: #008080;\">\n#fill in area between regression line and confidence interval\n<span style=\"color: #000000;\">polygon(c(rev(newx), newx), c(rev(preds[,3]), preds[,2]), col = 'grey', border = NA)<\/span>\n\n#add fitted regression line<\/span>\nabline(model)\n\n<span style=\"color: #008080;\">#add dashed lines for confidence bands\n<\/span>lines(newx, preds[,3], lty = 'dashed', col = 'blue')\nlines(newx, preds[,2], lty = 'dashed', col = 'blue')<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9947 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotconfintr2.png\" alt=\"R'de G\u00fcven Aral\u0131\u011f\u0131 Tablosu\" width=\"454\" height=\"422\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">\u0130\u015fte ba\u015ftan sona kodun tamam\u0131:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<span style=\"color: #000000;\">set.seed(0)<\/span>\n\n#create dataset\n<span style=\"color: #000000;\">x &lt;- rnorm(100)<\/span>\n<span style=\"color: #000000;\">y &lt;- x*2 + rnorm(100)<\/span>\n<span style=\"color: #000000;\">df &lt;- data.frame(x = x, y = y)<\/span>\n\n#fit linear regression model\n<span style=\"color: #000000;\">model &lt;- lm(y ~ x, data = df)<\/span>\n\n#get predicted y values using regression equation\n<span style=\"color: #000000;\">newx &lt;- seq(min(df$x), max(df$x), length.out=100)<\/span>\n<span style=\"color: #000000;\">preds &lt;- predict(model, newdata = data.frame(x=newx), interval = 'confidence')<\/span>\n\n#create plot of x vs. y<\/span>\nplot(y ~ x, data = df, type = 'n')\n<span style=\"color: #008080;\">\n#fill in area between regression line and confidence interval\n<span style=\"color: #000000;\">polygon(c(rev(newx), newx), c(rev(preds[,3]), preds[,2]), col = 'grey', border = NA)<\/span>\n\n#add fitted regression line<\/span>\nabline(model)\n\n<span style=\"color: #008080;\">#add dashed lines for confidence bands\n<\/span>lines(newx, preds[,3], lty = 'dashed', col = 'blue')\nlines(newx, preds[,2], lty = 'dashed', col = 'blue')<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p><a href=\"https:\/\/statorials.org\/tr\/guvenilirlik-araligi\/\" target=\"_blank\" rel=\"noopener noreferrer\">G\u00fcven aral\u0131klar\u0131 nedir?<\/a><br \/> Grafiklere d\u00fcz \u00e7izgiler eklemek i\u00e7in R&#8217;de abline() i\u015flevi nas\u0131l kullan\u0131l\u0131r?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>G\u00fcven aral\u0131\u011f\u0131, belirli bir g\u00fcven d\u00fczeyine sahip bir pop\u00fclasyon parametresini i\u00e7ermesi muhtemel bir de\u011fer aral\u0131\u011f\u0131d\u0131r. Bu e\u011fitimde, R&#8217;deki bir veri k\u00fcmesi i\u00e7in g\u00fcven aral\u0131\u011f\u0131n\u0131n nas\u0131l \u00e7izilece\u011fi a\u00e7\u0131klanmaktad\u0131r. \u00d6rnek: R&#8217;de bir g\u00fcven aral\u0131\u011f\u0131 \u00e7izmek R&#8217;de 100 sat\u0131r ve 2 s\u00fctundan olu\u015fan a\u015fa\u011f\u0131daki veri k\u00fcmesine sahip oldu\u011fumuzu varsayal\u0131m: #make this example reproducible set.seed(0) #create dataset x &lt;- [&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-940","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\u00fcven aral\u0131\u011f\u0131 nas\u0131l \u00e7izilir<\/title>\n<meta name=\"description\" content=\"Bir \u00f6rnekle, R&#039;de bir g\u00fcven aral\u0131\u011f\u0131n\u0131n nas\u0131l \u00e7izilece\u011finin basit bir a\u00e7\u0131klamas\u0131.\" \/>\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\/guven-araligini-cizin-r\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R - 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