{"id":2287,"date":"2023-07-22T22:28:49","date_gmt":"2023-07-22T22:28:49","guid":{"rendered":"https:\/\/statorials.org\/pt\/mesclar-varios-quadros-de-dados-em-r\/"},"modified":"2023-07-22T22:28:49","modified_gmt":"2023-07-22T22:28:49","slug":"mesclar-varios-quadros-de-dados-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/mesclar-varios-quadros-de-dados-em-r\/","title":{"rendered":"Como mesclar v\u00e1rios quadros de dados em r (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar um dos dois m\u00e9todos para mesclar v\u00e1rios quadros de dados em R:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: Use Base R<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #ff0000;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#put all data frames into list\n<\/span>df_list &lt;- list(df1, df2, df3)\n\n<span style=\"color: #008080;\">#merge all data frames into list\n<\/span>Reduce(function(x, y) merge(x, y, all= <span style=\"color: #008000;\">TRUE<\/span> ), df_list)<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: use o Tidyverse<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #ff0000;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (tidyverse)<\/span>\n\n#put all data frames into list\n<\/span>df_list &lt;- list(df1, df2, df3)\n\n<span style=\"color: #008080;\">#merge all data frames into list\n<\/span>df_list %&gt;% reduce(full_join, by=' <span style=\"color: #ff0000;\">variable_name<\/span> ')\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: mesclar v\u00e1rios quadros de dados usando Base R<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que temos os seguintes quadros de dados em R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define data frames\n<\/span>df1 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 3, 4, 5),\n                  revenue=c(34, 36, 40, 49, 43))\n\ndf2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 5, 6, 7),\n                  expenses=c(22, 26, 31, 40, 20))\n\ndf3 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 4, 5, 7),\n                  profit=c(12, 10, 14, 12, 9))<\/span><\/span><\/strong>\n<\/pre>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para mesclar todos os quadros de dados usando fun\u00e7\u00f5es base R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#put all data frames into list\n<\/span>df_list &lt;- list(df1, df2, df3)      \n\n<span style=\"color: #008080;\">#merge all data frames together\n<\/span>Reduce(function(x, y) merge(x, y, all= <span style=\"color: #008000;\">TRUE<\/span> ), df_list)  \n\n  id revenue expenses profit\n1 1 34 22 12\n2 2 36 26 10\n3 3 40 NA NA\n4 4 49 NA 14\n5 5 43 31 12\n6 6 NA 40 NA\n7 7 NA 20 9<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que cada um dos valores de \u201cid\u201d de cada bloco de dados original \u00e9 inclu\u00eddo no bloco de dados final.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: mesclar v\u00e1rios quadros de dados usando o Tidyverse<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Suponha que temos os seguintes quadros de dados em R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define data frames\n<\/span>df1 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 3, 4, 5),\n                  revenue=c(34, 36, 40, 49, 43))\n\ndf2 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 5, 6, 7),\n                  expenses=c(22, 26, 31, 40, 20))\n\ndf3 &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (id=c(1, 2, 4, 5, 7),\n                  profit=c(12, 10, 14, 12, 9))<\/span><\/span><\/strong>\n<\/pre>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para mesclar todos os quadros de dados usando fun\u00e7\u00f5es do <a href=\"https:\/\/www.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">Tidyverse<\/a> \u2013 uma cole\u00e7\u00e3o de pacotes projetados para ci\u00eancia de dados em R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (tidyverse)<\/span>\n\n#put all data frames into list\n<\/span>df_list &lt;- list(df1, df2, df3)      \n\n<span style=\"color: #008080;\">#merge all data frames together\n<\/span>df_list %&gt;% reduce(full_join, by=' <span style=\"color: #ff0000;\">id<\/span> ')\n\n  id revenue expenses profit\n1 1 34 22 12\n2 2 36 26 10\n3 3 40 NA NA\n4 4 49 NA 14\n5 5 43 31 12\n6 6 NA 40 NA\n7 7 NA 20 9<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que o quadro de dados final corresponde ao quadro de dados que produzimos usando o primeiro m\u00e9todo.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : A abordagem Tidyverse ser\u00e1 visivelmente mais r\u00e1pida se voc\u00ea estiver trabalhando com quadros de dados extremamente grandes.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como executar outras fun\u00e7\u00f5es comuns em R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/r-mesclar-varias-colunas\/\" target=\"_blank\" rel=\"noopener\">Como mesclar quadros de dados com base em m\u00faltiplas colunas em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/empilhar-colunas-em-r\/\" target=\"_blank\" rel=\"noopener\">Como empilhar colunas de quadro de dados em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/dplyr-anti-juncao\/\" target=\"_blank\" rel=\"noopener\">Como usar anti_join em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar um dos dois m\u00e9todos para mesclar v\u00e1rios quadros de dados em R: M\u00e9todo 1: Use Base R #put all data frames into list df_list &lt;- list(df1, df2, df3) #merge all data frames into list Reduce(function(x, y) merge(x, y, all= TRUE ), df_list) M\u00e9todo 2: use o Tidyverse library (tidyverse) #put all data [&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-2287","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 mesclar v\u00e1rios quadros de dados em R (com exemplos) - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como mesclar v\u00e1rios quadros de dados em R, com 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\" 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