{"id":2897,"date":"2023-07-20T04:51:17","date_gmt":"2023-07-20T04:51:17","guid":{"rendered":"https:\/\/statorials.org\/pl\/lista-powiazan\/"},"modified":"2023-07-20T04:51:17","modified_gmt":"2023-07-20T04:51:17","slug":"lista-powiazan","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/lista-powiazan\/","title":{"rendered":"Jak u\u017cywa\u0107 rbindlist w r do tworzenia tabeli danych z wielu"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Funkcja <strong>rbindlist()<\/strong> w R mo\u017ce zosta\u0107 u\u017cyta do utworzenia data.table z listy wielu obiekt\u00f3w data.table lub data.frame.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ta funkcja wykorzystuje nast\u0119puj\u0105c\u0105 podstawow\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>rbindlist(l, use. <span style=\"color: #3366ff;\">names<\/span> =\"check\", fill= <span style=\"color: #008000;\">FALSE<\/span> , idcol= <span style=\"color: #008000;\">NULL<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Z\u0142oto:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>l<\/strong> : Lista zawieraj\u0105ca obiekty data.table, data.frame lub list.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>use.names<\/strong> : TRUE wi\u0105\u017ce nazwy kolumn. FA\u0141SZ wi\u0105\u017ce wed\u0142ug pozycji.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>fill<\/strong> : TRUE uzupe\u0142nia brakuj\u0105ce warto\u015bci NA.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>idcol<\/strong> : Tworzy kolumn\u0119 wskazuj\u0105c\u0105, z kt\u00f3rego elementu listy pochodz\u0105 te wiersze.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Poni\u017cszy przyk\u0142ad pokazuje, jak w praktyce wykorzysta\u0107 t\u0119 funkcj\u0119.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: u\u017cyj rbindlist, aby utworzy\u0107 tabel\u0119 danych<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce mamy nast\u0119puj\u0105c\u0105 list\u0119 obiekt\u00f3w data.table i data.frame w R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (data.table)\n\n<span style=\"color: #008080;\">#create data frames and data tables\n<\/span>data1 &lt;- data. <span style=\"color: #3366ff;\">table<\/span> (team=c('A', 'B', 'C'),\n                    dots=c(22, 27, 38))\n\ndata2 &lt;- data. <span style=\"color: #3366ff;\">table<\/span> (team=c('D', 'E', 'F'),\n                    dots=c(22, 14, 20))\n\ndata3 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('G', 'H', 'I'),\n                    dots=c(11, 15, 18))\n\n<span style=\"color: #008080;\">#view data frames and data tables\n<\/span><span style=\"color: #008000;\">print<\/span> (data1)\n<span style=\"color: #008000;\">print<\/span> (data2)\n<span style=\"color: #008000;\">print<\/span> (data3)\n\n   team points\n1: At 22\n2:B27\n3: C 38\n   team points\n1:D22\n2:E14\n3:F20\n  team points\n1 G 11\n2:15 a.m.\n3 I 18<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Mo\u017cemy u\u017cy\u0107 nast\u0119puj\u0105cej funkcji <strong>rbindlist()<\/strong> , aby powi\u0105za\u0107 list\u0119 obiekt\u00f3w data.table i data.frame w jedn\u0105 tabel\u0119 danych:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define list of objects to bind together\n<\/span>data_list &lt;- list(data1, data2, data3)\n\n<span style=\"color: #008080;\">#bind together list of objects\n<\/span>big_data &lt;- rbindlist(data_list)\n\n<span style=\"color: #008080;\">#view result\n<\/span>big_data\n\n   team points\n1: At 22\n2:B27\n3: C 38\n4:D22\n5:E14\n6:F20\n7:G 11\n8:15 a.m.\n9: I 18<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Rezultatem jest obiekt data.table z dziewi\u0119cioma wierszami sk\u0142adaj\u0105cymi si\u0119 z wierszy z podanej przez nas listy obiekt\u00f3w.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Mo\u017cemy r\u00f3wnie\u017c u\u017cy\u0107 funkcji <strong>class()<\/strong> , aby sprawdzi\u0107, czy wynik rzeczywi\u015bcie jest obiektem data.table:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#view class of resulting object\n<\/span>class(big_data)\n\n[1] \"data.table\" \"data.frame\"\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Widzimy, \u017ce <span style=\"color: #000000;\">wynikiem jest rzeczywi\u015bcie obiekt data.table.<\/span><\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Zaleta korzystania z rbindlist<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Alternatyw\u0105 dla u\u017cycia <strong>rbindlist<\/strong> by\u0142oby u\u017cycie <strong>do.call<\/strong> z funkcj\u0105 rbind w bazie R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#use rbind to bind together list of objects\n<\/span>do. <span style=\"color: #3366ff;\">call<\/span> (\" <span style=\"color: #ff0000;\">rbind<\/span> \", data_list)\n\n   team points\n1: At 22\n2:B27\n3: C 38\n4:D22\n5:E14\n6:F20\n7:G 11\n8:15 a.m.\n9: I 18\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ten kod daje ten sam wynik, ale okazuje si\u0119, \u017ce <strong>rbindlist<\/strong> jest znacznie szybszy, szczeg\u00f3lnie w przypadku bardzo du\u017cych obiekt\u00f3w data.table lub data.frame.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe operacje w j\u0119zyku R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/przekonwertuj-ramke-danych-tabeli-na-r\/\" target=\"_blank\" rel=\"noopener\">Jak przekonwertowa\u0107 tabel\u0119 na ramk\u0119 danych w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/r-dodaj-do-ramki-danych\/\" target=\"_blank\" rel=\"noopener\">Jak doda\u0107 wiersze do ramki danych w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/r-podziel-ramke-danych\/\" target=\"_blank\" rel=\"noopener\">Jak podzieli\u0107 ramk\u0119 danych w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Funkcja rbindlist() w R mo\u017ce zosta\u0107 u\u017cyta do utworzenia data.table z listy wielu obiekt\u00f3w data.table lub data.frame. Ta funkcja wykorzystuje nast\u0119puj\u0105c\u0105 podstawow\u0105 sk\u0142adni\u0119: rbindlist(l, use. names =&#8221;check&#8221;, fill= FALSE , idcol= NULL ) Z\u0142oto: l : Lista zawieraj\u0105ca obiekty data.table, data.frame lub list. use.names : TRUE wi\u0105\u017ce nazwy kolumn. FA\u0141SZ wi\u0105\u017ce wed\u0142ug pozycji. fill : [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2897","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak u\u017cywa\u0107 rbindlist w R do tworzenia tabeli danych z wielu - Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji rbindlist w j\u0119zyku R do tworzenia tabeli danych z wielu list, \u0142\u0105cznie z przyk\u0142adami.\" \/>\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\/pl\/lista-powiazan\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak u\u017cywa\u0107 rbindlist w R do tworzenia tabeli danych z wielu - Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji rbindlist w j\u0119zyku R do tworzenia tabeli danych z wielu list, \u0142\u0105cznie z przyk\u0142adami.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/lista-powiazan\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-20T04:51:17+00:00\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/lista-powiazan\/\",\"url\":\"https:\/\/statorials.org\/pl\/lista-powiazan\/\",\"name\":\"Jak u\u017cywa\u0107 rbindlist w R do tworzenia tabeli danych z wielu - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-20T04:51:17+00:00\",\"dateModified\":\"2023-07-20T04:51:17+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji rbindlist w j\u0119zyku R do tworzenia tabeli danych z wielu list, \u0142\u0105cznie z przyk\u0142adami.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/lista-powiazan\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/lista-powiazan\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/lista-powiazan\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak u\u017cywa\u0107 rbindlist w r do tworzenia tabeli danych z wielu\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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