Bu e\u011fitimde iris veri k\u00fcmesini \u00f6rnek olarak kullanarak R’de bir veri k\u00fcmesinin nas\u0131l ke\u015ffedilece\u011fi ve \u00f6zetlenece\u011fi a\u00e7\u0131klanmaktad\u0131r.<\/span><\/p>\n \u0130lgili:<\/strong> R’deki mtcars Veri K\u00fcmesi \u0130\u00e7in Tam Bir K\u0131lavuz<\/a><\/span><\/p>\n \u0130ris veri k\u00fcmesi R’de yerle\u015fik bir veri k\u00fcmesi oldu\u011fundan, a\u015fa\u011f\u0131daki komutu kullanarak y\u00fckleyebiliriz:<\/span><\/p>\n Head()<\/strong> fonksiyonunu kullanarak veri setinin ilk alt\u0131 sat\u0131r\u0131na g\u00f6z atabiliriz:<\/span><\/p>\n Veri k\u00fcmesindeki her de\u011fi\u015fkeni h\u0131zl\u0131 bir \u015fekilde \u00f6zetlemek i\u00e7in Summary()<\/strong> i\u015flevini kullanabiliriz:<\/span><\/p>\n Say\u0131sal de\u011fi\u015fkenlerin her biri i\u00e7in a\u015fa\u011f\u0131daki bilgileri g\u00f6rebiliriz:<\/span><\/p>\n Veri k\u00fcmesindeki tek kategorik de\u011fi\u015fken (T\u00fcrler) i\u00e7in her de\u011ferin frekans say\u0131s\u0131n\u0131 g\u00f6r\u00fcyoruz:<\/span><\/p>\n Veri k\u00fcmesinin boyutlar\u0131n\u0131 sat\u0131r ve s\u00fctun say\u0131s\u0131na g\u00f6re elde etmek i\u00e7in dim()<\/strong> i\u015flevini kullanabiliriz:<\/span><\/p>\n Veri setinin 150<\/strong> sat\u0131r ve 5<\/strong> s\u00fctundan olu\u015ftu\u011funu g\u00f6r\u00fcyoruz.<\/span><\/p>\n Veri \u00e7er\u00e7evesinin s\u00fctun adlar\u0131n\u0131 g\u00f6r\u00fcnt\u00fclemek i\u00e7in labels()<\/strong> i\u015flevini de kullanabiliriz:<\/span><\/p>\n Veri k\u00fcmesinin de\u011ferlerini g\u00f6rselle\u015ftirmek i\u00e7in grafikler de olu\u015fturabiliriz.<\/span><\/p>\n \u00d6rne\u011fin, belirli bir de\u011fi\u015fkenin de\u011ferlerinin histogram\u0131n\u0131 olu\u015fturmak i\u00e7in hist()<\/strong> fonksiyonunu kullanabiliriz:<\/span> <\/p>\n De\u011fi\u015fkenlerin herhangi bir ikili kombinasyonunun da\u011f\u0131l\u0131m grafi\u011fini olu\u015fturmak i\u00e7in de arsa()<\/strong> fonksiyonunu kullanabiliriz:<\/span> <\/p>\n Grup ba\u015f\u0131na bir kutu grafi\u011fi olu\u015fturmak i\u00e7in boxplot()<\/strong> i\u015flevini de kullanabiliriz:<\/span> <\/p>\n X ekseni \u00fc\u00e7 t\u00fcr\u00fc, y ekseni ise her t\u00fcr i\u00e7in sepal uzunluk de\u011ferlerinin da\u011f\u0131l\u0131m\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n Bu t\u00fcr bir grafik, \u00e7anak yapraklar\u0131n uzunlu\u011funun virginica t\u00fcrleri i\u00e7in en b\u00fcy\u00fck ve setosa t\u00fcrleri i\u00e7in en k\u00fc\u00e7\u00fck olma e\u011filiminde oldu\u011funu h\u0131zl\u0131 bir \u015fekilde g\u00f6rmemize olanak tan\u0131r.<\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde R’deki veri k\u00fcmelerinin nas\u0131l \u00f6zetlenece\u011fi daha ayr\u0131nt\u0131l\u0131 olarak a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n R’de \u00f6zet tablolar olu\u015fturman\u0131n en kolay yolu<\/a> \u0130ris veri seti, 3 farkl\u0131 t\u00fcrden 50 \u00e7i\u00e7ek i\u00e7in 4 farkl\u0131 \u00f6zelli\u011fe (santimetre cinsinden) ili\u015fkin \u00f6l\u00e7\u00fcmleri i\u00e7eren, R’de entegre bir veri setidir. Bu e\u011fitimde iris veri k\u00fcmesini \u00f6rnek olarak kullanarak R’de bir veri k\u00fcmesinin nas\u0131l ke\u015ffedilece\u011fi ve \u00f6zetlenece\u011fi a\u00e7\u0131klanmaktad\u0131r. \u0130lgili: R’deki mtcars Veri K\u00fcmesi \u0130\u00e7in Tam Bir K\u0131lavuz Iris veri k\u00fcmesini y\u00fckle \u0130ris veri k\u00fcmesi […]<\/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-2017","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n Iris veri k\u00fcmesini y\u00fckle<\/strong><\/span><\/h3>\n
data(iris)<\/strong><\/span><\/pre>\n #view first six rows of iris dataset<\/span>\nhead(iris)\n\n Sepal.Length Sepal.Width Petal.Length Petal.Width Species\n1 5.1 3.5 1.4 0.2 setosa\n2 4.9 3.0 1.4 0.2 setosa\n3 4.7 3.2 1.3 0.2 setosa\n4 4.6 3.1 1.5 0.2 setosa\n5 5.0 3.6 1.4 0.2 setosa\n6 5.4 3.9 1.7 0.4 setosa\n<\/strong><\/span><\/pre>\n Iris veri k\u00fcmesini \u00f6zetleme<\/strong><\/span><\/h3>\n
#summarize iris dataset<\/span>\nsummary(iris)\n\n Sepal.Length Sepal.Width Petal.Length Petal.Width \n Min. :4,300 Min. :2,000 Min. :1,000 Min. :0.100 \n 1st Qu.:5.100 1st Qu.:2.800 1st Qu.:1.600 1st Qu.:0.300 \n Median: 5,800 Median: 3,000 Median: 4,350 Median: 1,300 \n Mean:5.843 Mean:3.057 Mean:3.758 Mean:1.199 \n 3rd Qu.:6,400 3rd Qu.:3,300 3rd Qu.:5,100 3rd Qu.:1,800 \n Max. :7,900 Max. :4,400 Max. :6,900 Max. :2,500 \n Species \n setosa:50 \n versicolor:50 \n virginica :50<\/strong><\/span><\/pre>\n\n
\n
#display rows and columns<\/span>\ndim(iris)\n\n[1] 150 5\n<\/strong><\/span><\/pre>\n #display column names<\/span>\nnames(iris)\n\n[1] \"Sepal.Length\" \"Sepal.Width\" \"Petal.Length\" \"Petal.Width\" \"Species\" \n<\/strong><\/span><\/pre>\n Iris veri k\u00fcmesini g\u00f6rselle\u015ftirin<\/strong><\/span><\/h3>\n
#create histogram of values for sepal length<\/span>\nhist(iris$Sepal.Length,\n col=' steelblue<\/span> ',\n main=' Histogram<\/span> ',\n xlab=' Length<\/span> ',\n ylab=' Frequency<\/span> ')\n<\/strong><\/span><\/pre>\n![\"\"](\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/iris1.png\")
<\/p>\n #create scatterplot of sepal width vs. sepal length<\/span>\nplot(iris$Sepal.Width, iris$Sepal.Length,\n col=' steelblue<\/span> ',\n main=' Scatterplot<\/span> ',\n xlab=' Sepal Width<\/span> ',\n ylab=' Sepal Length<\/span> ',\n pch= 19<\/span> )<\/strong><\/span> <\/pre>\n![\"\"](\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/iris2.png\")
<\/p>\n #create scatterplot of sepal width vs. sepal length<\/span>\nboxplot(Sepal.Length~Species,\n data=iris,\n main=' Sepal Length by Species<\/span> ',\n xlab=' Species<\/span> ',\n ylab=' Sepal Length<\/span> ',\n col=' steelblue<\/span> ',\n border=' black<\/span> ')<\/strong><\/span> <\/pre>\n![\"\"](\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/iris3.png\")
<\/p>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
R’deki be\u015f say\u0131n\u0131n \u00f6zeti nas\u0131l hesaplan\u0131r<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"