{"id":669,"date":"2023-07-29T03:56:06","date_gmt":"2023-07-29T03:56:06","guid":{"rendered":"https:\/\/statorials.org\/tr\/arsa-t-dagilimi-r\/"},"modified":"2023-07-29T03:56:06","modified_gmt":"2023-07-29T03:56:06","slug":"arsa-t-dagilimi-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/arsa-t-dagilimi-r\/","title":{"rendered":"R&#39;de bir t da\u011f\u0131l\u0131m\u0131 nas\u0131l \u00e7izilir"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">R&#8217;deki at da\u011f\u0131l\u0131m\u0131 i\u00e7in olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in a\u015fa\u011f\u0131daki fonksiyonlar\u0131 kullanabiliriz:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Olas\u0131l\u0131k yo\u011funluk fonksiyonunu olu\u015fturmak i\u00e7in <strong>dt(x, df)<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in <strong>e\u011fri(i\u015flev, = NULL&#8217;dan = NULL&#8217;a)<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in <strong>dt()<\/strong> fonksiyonunda <strong>df&#8217;yi<\/strong> (serbestlik derecesi) ve <strong>curve()<\/strong> fonksiyonunda <strong>from<\/strong> ve <strong>to<\/strong> de\u011ferlerini belirtmemiz gerekir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod, grafi\u011fin x ekseninin -4 ile 4 aras\u0131nda oldu\u011fu 10 serbestlik derecesine sahip bir da\u011f\u0131l\u0131m i\u00e7in olas\u0131l\u0131k yo\u011funluk fonksiyonunun nas\u0131l \u00e7izilece\u011fini g\u00f6sterir:<\/span> <\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong>curve(dt(x, df=10), from=-4, to=4)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6424 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/tdistr1.png\" alt=\"R'de bir t da\u011f\u0131l\u0131m\u0131n\u0131n grafi\u011fini \u00e7izme\" width=\"421\" height=\"388\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Normal da\u011f\u0131l\u0131ma benzer \u015fekilde t da\u011f\u0131l\u0131m\u0131 da ortalama 0 civar\u0131nda simetriktir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Grafi\u011fi estetik a\u00e7\u0131dan daha ho\u015f hale getirmek i\u00e7in bir ba\u015fl\u0131k ekleyebilir, Y ekseni etiketini de\u011fi\u015ftirebilir, sat\u0131r geni\u015fli\u011fini art\u0131rabilir ve hatta sat\u0131r rengini de\u011fi\u015ftirebiliriz:<\/span> <\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong>curve(dt(x, df=10), from=-4, to=4, \n    main = 't Distribution (df = 10)', <span style=\"color: #008080;\">#add title<\/span>\n    ylab = 'Density', <span style=\"color: #008080;\">#change y-axis label<\/span>\n    lwd = 2, <span style=\"color: #008080;\">#increase line width to 2<\/span>\n    col = 'steelblue') <span style=\"color: #008080;\">#change line color to steelblue<\/span> \n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6430 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/tdistr4.png\" alt=\"t R'deki da\u011f\u0131t\u0131m diyagram\u0131\" width=\"421\" height=\"405\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Farkl\u0131 serbestlik derecelerine sahip t da\u011f\u0131l\u0131mlar\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131rmak i\u00e7in grafi\u011fe birden fazla e\u011fri de ekleyebiliriz. \u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod df = 6, df = 10 ve df = 30 olan t da\u011f\u0131l\u0131m grafiklerini olu\u015fturur:<\/span> <\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong>curve(dt(x, df=6), from=-4, to=4, col='blue') \ncurve(dt(x, df=10), from=-4, to=4, col='red', add=TRUE)\ncurve(dt(x, df=30), from=-4, to=4, col='green', add=TRUE)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6425 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/tdistr2.png\" alt=\"R'de \u00e7oklu t da\u011f\u0131l\u0131m grafikleri\" width=\"421\" height=\"408\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki s\u00f6zdizimini alan <strong>legend()<\/strong> i\u015flevini kullanarak \u00e7izime bir efsane ekleyebiliriz:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>a\u00e7\u0131klama(x, y=NULL, a\u00e7\u0131klama, dolgu, s\u00fctun, bg, lty, cex)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Alt\u0131n:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x, y:<\/strong> a\u00e7\u0131klamay\u0131 konumland\u0131rmak i\u00e7in kullan\u0131lan x ve y koordinatlar\u0131<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>efsane:<\/strong> efsaneye eklenecek metin<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>dolgu:<\/strong> a\u00e7\u0131klaman\u0131n i\u00e7indeki rengi doldur<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>col:<\/strong> a\u00e7\u0131klaman\u0131n i\u00e7indeki \u00e7izgiler i\u00e7in kullan\u0131lacak renklerin listesi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>bg:<\/strong> efsanenin arka plan rengi<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>lty:<\/strong> \u00e7izgi stili<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>cex:<\/strong> efsanedeki metnin boyutu<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">\u00d6rne\u011fimizde bir g\u00f6sterge olu\u015fturmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanaca\u011f\u0131z:<\/span> <\/p>\n<pre style=\"background-color: #e5e5e5; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create density plots<\/span>\ncurve(dt(x, df=6), from=-4, to=4, col='blue') \ncurve(dt(x, df=10), from=-4, to=4, col='red', add=TRUE)\ncurve(dt(x, df=30), from=-4, to=4, col='green', add=TRUE)\n\n<span style=\"color: #008080;\">#add legend<\/span>\nlegend(-4, .3, legend=c(\"df=6\", \"df=10\", \"df=30\"),\n       col=c(\"blue\", \"red\", \"green\"), lty=1, cex=1.2)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6427 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/tdistr3.png\" alt=\"R'de a\u00e7\u0131klama i\u00e7eren \u00e7oklu t-da\u011f\u0131l\u0131m\u0131 grafikleri\" width=\"416\" height=\"398\" srcset=\"\" sizes=\"auto, \"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>R&#8217;deki at da\u011f\u0131l\u0131m\u0131 i\u00e7in olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in a\u015fa\u011f\u0131daki fonksiyonlar\u0131 kullanabiliriz: Olas\u0131l\u0131k yo\u011funluk fonksiyonunu olu\u015fturmak i\u00e7in dt(x, df) olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in e\u011fri(i\u015flev, = NULL&#8217;dan = NULL&#8217;a) Olas\u0131l\u0131k yo\u011funluk fonksiyonunu \u00e7izmek i\u00e7in dt() fonksiyonunda df&#8217;yi (serbestlik derecesi) ve curve() fonksiyonunda from ve to de\u011ferlerini belirtmemiz gerekir. \u00d6rne\u011fin, a\u015fa\u011f\u0131daki kod, grafi\u011fin x ekseninin -4 [&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-669","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 - Statorials&#039;ta bir t da\u011f\u0131l\u0131m\u0131 nas\u0131l \u00e7izilir<\/title>\n<meta name=\"description\" content=\"R&#039;de bir t 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