{"id":1082,"date":"2023-07-27T17:40:43","date_gmt":"2023-07-27T17:40:43","guid":{"rendered":"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/"},"modified":"2023-07-27T17:40:43","modified_gmt":"2023-07-27T17:40:43","slug":"empilhar-colunas-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/","title":{"rendered":"Como empilhar colunas de quadro de dados em r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Muitas vezes voc\u00ea pode querer empilhar duas ou mais colunas de quadro de dados em uma \u00fanica coluna em R.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo, voc\u00ea pode querer come\u00e7ar com isto:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>person trial outcome1 outcome2\n     A 1 7 4\n     A 2 6 4\n     B 1 6 5\n     B 2 5 5\n     C 1 4 3\n     C 2 4 2\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Por isso:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>person trial outcomes value\n      A 1 outcome1 7\n      A 2 outcome1 6\n      B 1 outcome1 6\n      B 2 outcome1 5\n      C 1 outcome1 4\n      C 2 outcome1 4\n      A 1 outcome2 4\n      A 2 outcome2 4\n      B 1 outcome2 5\n      B 2 outcome2 5\n      C 1 outcome2 3\n      C 2 outcome2 2<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este tutorial explica dois m\u00e9todos que voc\u00ea pode usar em R para fazer isso.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: Use a fun\u00e7\u00e3o Stack na Base R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como empilhar colunas usando a fun\u00e7\u00e3o <strong>stack<\/strong> na Base R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create original data frame\n<\/span>data &lt;- data.frame(person=c('A', 'A', 'B', 'B', 'C', 'C'),\n                   trial=c(1, 2, 1, 2, 1, 2),\n                   outcome1=c(7, 6, 6, 5, 4, 4),\n                   outcome2=c(4, 4, 5, 5, 3, 2))\n\n<span style=\"color: #008080;\">#stack the third and fourth columns<\/span>\n<span style=\"color: #3366ff;\">cbind<\/span> (data[1:2], <span style=\"color: #3366ff;\">stack<\/span> (data[3:4]))\n\n   person trial values ind\n1 A 1 7 outcome1\n2 A 2 6 outcome1\n3 B 1 6 outcome1\n4 B 2 5 outcome1\n5 C 1 4 outcome1\n6 C 2 4 outcome1\n7 A 1 4 outcome2\n8 A 2 4 outcome2\n9 B 1 5 outcome2\n10 B 2 5 outcome2\n11 C 1 3 outcome2\n12 C 2 2 outcome2\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: Use a fun\u00e7\u00e3o Melt do Reshape2<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como empilhar colunas usando a fun\u00e7\u00e3o <strong>melt<\/strong> na biblioteca <strong>reshape2<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#loadlibrary<\/span>\nlibrary(reshape2)\n\n<span style=\"color: #008080;\">#create original data frame\n<\/span>data &lt;- data.frame(person=c('A', 'A', 'B', 'B', 'C', 'C'),\n                   trial=c(1, 2, 1, 2, 1, 2),\n                   outcome1=c(7, 6, 6, 5, 4, 4),\n                   outcome2=c(4, 4, 5, 5, 3, 2))\n\n<span style=\"color: #008080;\">#melt columns of data frame<\/span>\nmelt(data, id. <span style=\"color: #3366ff;\">var<\/span> = c(' <span style=\"color: #008000;\">person<\/span> ', ' <span style=\"color: #008000;\">trial<\/span> '), variable. name = ' <span style=\"color: #008000;\">outcomes<\/span> ')\n\n   person trial outcomes value\n1 A 1 outcome1 7\n2 A 2 outcome1 6\n3 B 1 outcome1 6\n4 B 2 outcome1 5\n5 C 1 outcome1 4\n6 C 2 outcome1 4\n7 A 1 outcome2 4\n8 A 2 outcome2 4\n9 B 1 outcome2 5\n10 B 2 outcome2 5\n11 C 1 outcome2 3\n12 C 2 outcome2 2\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><em>Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o de mesclagem <a href=\"https:\/\/www.rdocumentation.org\/packages\/reshape2\/versions\/1.4.4\/topics\/melt\" target=\"_blank\" rel=\"noopener noreferrer\">aqui<\/a> .<\/em><\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/trocar-duas-colunas-em-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como alterar duas colunas em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/estatologia-explica-conceitos-de-forma-simples-e-direta-facilitamos-o-aprendizado-de-estatistica\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como renomear colunas em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/adicione-colunas-especificas-em-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como somar colunas espec\u00edficas em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Muitas vezes voc\u00ea pode querer empilhar duas ou mais colunas de quadro de dados em uma \u00fanica coluna em R. Por exemplo, voc\u00ea pode querer come\u00e7ar com isto: person trial outcome1 outcome2 A 1 7 4 A 2 6 4 B 1 6 5 B 2 5 5 C 1 4 3 C 2 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-1082","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Como empilhar colunas de quadro de dados em R - Estatoriais<\/title>\n<meta name=\"description\" content=\"Uma explica\u00e7\u00e3o simples de como empilhar colunas de quadros de dados em R, incluindo v\u00e1rios exemplos.\" \/>\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\/pt\/empilhar-colunas-em-r\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como empilhar colunas de quadro de dados em R - Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Uma explica\u00e7\u00e3o simples de como empilhar colunas de quadros de dados em R, incluindo v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T17:40:43+00:00\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/\",\"name\":\"Como empilhar colunas de quadro de dados em R - Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-27T17:40:43+00:00\",\"dateModified\":\"2023-07-27T17:40:43+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Uma explica\u00e7\u00e3o simples de como empilhar colunas de quadros de dados em R, incluindo v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como empilhar colunas de quadro de dados em r\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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