<\/p>\n
Bir ifadenin de\u011ferini d\u00f6nd\u00fcrmek veya bir uyar\u0131 veya hatayla kar\u015f\u0131la\u015f\u0131ld\u0131\u011f\u0131nda \u00f6zel bir mesaj olu\u015fturmak i\u00e7in R’deki tryCatch()<\/strong> i\u015flevini kullanabilirsiniz.<\/span><\/span><\/p>\n Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r:<\/span><\/p>\n A\u015fa\u011f\u0131daki \u00f6rnekler tryCatch()<\/strong> fonksiyonunun pratikte nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6stermektedir.<\/span><\/p>\n Diyelim ki bir de\u011ferin g\u00fcnl\u00fc\u011f\u00fcn\u00fc almaya ve ard\u0131ndan onu ikinci bir de\u011fere b\u00f6lmeye \u00e7al\u0131\u015fan a\u015fa\u011f\u0131daki tryCatch()<\/strong> i\u015flevini olu\u015fturdu\u011fumuzu varsayal\u0131m.<\/span><\/p>\n Bir hata olu\u015fursa, “Bir hata olu\u015ftu” mesaj\u0131n\u0131 \u00e7\u0131kt\u0131 olarak verece\u011fiz ve ard\u0131ndan hatay\u0131 R’ye yazd\u0131raca\u011f\u0131z.<\/span><\/p>\n Bir uyar\u0131 olu\u015fursa, “Bir uyar\u0131 olu\u015ftu” mesaj\u0131n\u0131 \u00e7\u0131kt\u0131 olarak verece\u011fiz, uyar\u0131y\u0131 R’ye yazd\u0131raca\u011f\u0131z ve ard\u0131ndan bir NA de\u011feri d\u00f6nd\u00fcrece\u011fiz.<\/span><\/p>\n Herhangi bir hata veya uyar\u0131 olu\u015fmazsa, yaln\u0131zca i\u015flev sonucunu d\u00f6nd\u00fcr\u00fcr\u00fcz.<\/span><\/p>\n Bu fonksiyonu farkl\u0131 senaryolarda \u00e7al\u0131\u015ft\u0131ral\u0131m.<\/span><\/p>\n Senaryo 1: Hi\u00e7bir hata veya uyar\u0131 olu\u015fmuyor.<\/strong><\/span><\/p>\n A\u015fa\u011f\u0131daki kod, hi\u00e7bir hatan\u0131n veya uyar\u0131n\u0131n olu\u015fmad\u0131\u011f\u0131 bir senaryoda i\u015flevin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n Herhangi bir hata veya uyar\u0131 olu\u015fmad\u0131\u011f\u0131ndan, i\u015flev yaln\u0131zca ifadenin sonucunu d\u00f6nd\u00fcr\u00fcr ve bu sonu\u00e7 1.151293<\/strong> olur.<\/span><\/p>\n Senaryo 2: Bir hata olu\u015fuyor.<\/strong><\/span><\/p>\n A\u015fa\u011f\u0131daki kod, bir hatan\u0131n olu\u015ftu\u011fu bir senaryoda i\u015flevin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n Fonksiyona yaln\u0131zca bir arg\u00fcman sa\u011flad\u0131\u011f\u0131m\u0131z i\u00e7in ” Bir hata olu\u015ftu<\/strong> ” mesaj\u0131n\u0131 al\u0131yoruz ve ayn\u0131 zamanda R’nin \u00fcretti\u011fi hatan\u0131n ayn\u0131s\u0131n\u0131 da g\u00f6r\u00fcyoruz.<\/span><\/p>\n Senaryo 3: Bir uyar\u0131 olu\u015fur.<\/strong><\/span><\/p>\n A\u015fa\u011f\u0131daki kod, bir uyar\u0131n\u0131n olu\u015ftu\u011fu bir senaryoda i\u015flevin nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n \u0130lk arg\u00fcman i\u00e7in negatif bir de\u011fer verdi\u011fimiz i\u00e7in R, negatif bir de\u011ferin logunu hesaplayam\u0131yor, bu nedenle ” Bir uyar\u0131 olu\u015ftu<\/strong> ” mesaj\u0131n\u0131 al\u0131yoruz, R taraf\u0131ndan \u00fcretilen uyar\u0131n\u0131n ayn\u0131s\u0131n\u0131 g\u00f6r\u00fcyoruz ve fonksiyon NA<\/strong> olarak geri d\u00f6n\u00fcyor. negatif de\u011fere sahiptir. sonu\u00e7.<\/span><\/p>\n A\u015fa\u011f\u0131daki e\u011fitimlerde R’de di\u011fer yayg\u0131n i\u015flemlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n R’de i\u00e7 i\u00e7e bir For d\u00f6ng\u00fcs\u00fc nas\u0131l olu\u015fturulur<\/a> Bir ifadenin de\u011ferini d\u00f6nd\u00fcrmek veya bir uyar\u0131 veya hatayla kar\u015f\u0131la\u015f\u0131ld\u0131\u011f\u0131nda \u00f6zel bir mesaj olu\u015fturmak i\u00e7in R’deki tryCatch() i\u015flevini kullanabilirsiniz. Bu i\u015flev a\u015fa\u011f\u0131daki temel s\u00f6zdizimini kullan\u0131r: my_function <- function (x, y){ tryCatch ( #try to do this { #some expression }, #if an error occurs, tell me the error error= function (e) { message(‘ An Error […]<\/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-3017","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"\n my_function <- function<\/span> (x, y){\n tryCatch<\/span> (\n #try to do this<\/span>\n {\n #some expression\n },\n #if an error occurs, tell me the error<\/span>\n error= function<\/span> (e) {\n message(' An Error Occurred<\/span> ')\n print(e)\n },\n #if a warning occurs, tell me the warning<\/span>\n warning= function<\/span> (w) {\n message(' A Warning Occurred<\/span> ')\n print(w)\n return<\/span> (NA)\n }\n )\n}\n<\/strong><\/pre>\n \u00d6rnek: R’de tryCatch() i\u015flevi olu\u015fturma<\/strong><\/span><\/h3>\n
log_and_divide <- function<\/span> (x, y){\n tryCatch<\/span> (\n {\n result = log(x) \/ y\n return<\/span> (result)\n },\n error= function<\/span> (e) {\n message(' An Error Occurred<\/span> ')\n print(e)\n },\n warning= function<\/span> (w) {\n message(' A Warning Occurred<\/span> ')\n print(w)\n return<\/span> (NA)\n }\n )\n}\n<\/span><\/span><\/strong><\/pre>\n #run function<\/span>\nlog_and_divide(10, 2)\n\n[1] 1.151293\n<\/span><\/span><\/strong><\/pre>\n #run function\n<\/span>log_and_divide(10)\n\nAn Error Occurred\n<simpleError in doTryCatch(return(expr), name, parentenv, handler):\n argument \"y\" is missing, with no default>\n<\/span><\/span><\/strong><\/pre>\n #run function\n<\/span>log_and_divide(-10, 2)\n\nA Warning Occurred\n<simpleWarning in log(x): NaNs produced>\n[1] NA\n<\/span><\/span><\/strong><\/pre>\n Ek kaynaklar<\/strong><\/span><\/h3>\n
R’de bir d\u00f6ng\u00fc kullanarak bir vekt\u00f6re de\u011ferler nas\u0131l eklenir<\/a>
R’de bir fonksiyonun de\u011feri nas\u0131l d\u00f6nd\u00fcr\u00fcl\u00fcr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"