{"id":944,"date":"2023-07-28T05:43:59","date_gmt":"2023-07-28T05:43:59","guid":{"rendered":"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/"},"modified":"2023-07-28T05:43:59","modified_gmt":"2023-07-28T05:43:59","slug":"remover-colunas-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/","title":{"rendered":"Como excluir colunas em r (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Freq\u00fcentemente, voc\u00ea pode querer remover uma ou mais colunas de um quadro de dados em R. Felizmente, isso \u00e9 f\u00e1cil de fazer usando a fun\u00e7\u00e3o <a href=\"https:\/\/dplyr.tidyverse.org\/reference\/select.html\" target=\"_blank\" rel=\"noopener noreferrer\">select()<\/a> do pacote <a href=\"https:\/\/dplyr.tidyverse.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">dplyr<\/a> .<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">library<\/span> (dplyr)<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este tutorial mostra v\u00e1rios exemplos de como usar esta fun\u00e7\u00e3o na pr\u00e1tica usando o seguinte data frame:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (player = c('a', 'b', 'c', 'd', 'e'),\n                 position = c('G', 'F', 'F', 'G', 'G'),\n                 points = c(12, 15, 19, 22, 32),\n                 rebounds = c(5, 7, 7, 12, 11))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  player position points rebounds\n1 to G 12 5\n2 b F 15 7\n3 c F 19 7\n4 d G 22 12\n5th G 32 11<\/strong><\/pre>\n<h3> <strong>Exemplo 1: Remover colunas por nome<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover colunas de um quadro de dados por nome:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove column named 'points'<\/span>\ndf %&gt;% select(-points)\n\n  player position rebounds\n1 to G 5\n2 b F 7\n3 c F 7\n4 d G 12\n5th G 11\n<\/strong><\/pre>\n<h3> <strong>Exemplo 2: Remover colunas da lista<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover colunas de um quadro de dados que est\u00e1 em uma lista espec\u00edfica:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns named 'points' or 'rebounds'<\/span>\ndf %&gt;% select(-one_of(' <span style=\"color: #008000;\">points<\/span> ', ' <span style=\"color: #008000;\">rebounds<\/span> ')) \n\n  player position\n1 a G\n2 b F\n3c F\n4 d L\n5th G<\/strong><\/pre>\n<h3> <strong>Exemplo 3: Excluir colunas no intervalo<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover todas as colunas no intervalo de &#8220;posi\u00e7\u00e3o&#8221; a &#8220;rejei\u00e7\u00f5es&#8221;:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns in range from 'position' to 'rebounds'<\/span>\ndf %&gt;% select(-(position:rebounds)) \n\n  player\n1 a\n2b\n3 tbsp\n4d\n5th<\/strong><\/pre>\n<h3> <strong>Exemplo 4: Remover colunas que cont\u00eam uma express\u00e3o<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover todas as colunas que cont\u00eam a palavra \u201cpontos\u201d<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns that contain the word 'points'<\/span>\ndf %&gt;% select(-contains(' <span style=\"color: #008000;\">points<\/span> ')) \n\n  player position rebounds\n1 to G 5\n2 b F 7\n3 c F 7\n4 d G 12\n5th G 11<\/strong><\/pre>\n<h3> <strong>Exemplo 5: Excluir colunas que come\u00e7am com determinadas letras<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover todas as colunas que come\u00e7am com as letras \u201cpo\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns that start with 'po'<\/span>\ndf %&gt;% select(-starts_with(' <span style=\"color: #008000;\">po<\/span> ')) \n\n  player rebounds\n1 to 5\n2 b 7\n3 v 7\n4 d 12\n5 th 11<\/strong><\/pre>\n<h3> <strong>Exemplo 6: Remova colunas que terminam com determinadas letras<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como remover todas as colunas que terminam com a letra \u201cs\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns that end with 's'<\/span>\ndf %&gt;% select(-ends_with(' <span style=\"color: #008000;\">s<\/span> ')) \n\n  player position\n1 a G\n2 b F\n3c F\n4 d G\n5th G<\/strong><\/pre>\n<h3> <strong>Exemplo 7: Excluir colunas por posi\u00e7\u00e3o<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como excluir colunas em posi\u00e7\u00f5es espec\u00edficas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#remove columns in position 1 and 4<\/span>\ndf %&gt;% select(-1, -4) \n\n  position points\n1 G 12\n2 F 15\n3 F 19\n4 G 22\n5 G 32<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o <strong>select()<\/strong> <a href=\"https:\/\/dplyr.tidyverse.org\/reference\/select.html\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/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 realizar outras opera\u00e7\u00f5es comuns usando dplyr:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/dplyr-excluir-linhas\/\" target=\"_blank\" rel=\"noopener\">Como deletar linhas usando dplyr<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/dplyr-remover-na\/\" target=\"_blank\" rel=\"noopener\">Como deletar linhas com valores NA usando dplyr<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/dplyr-seleciona-colunas-por-indice\/\" target=\"_blank\" rel=\"noopener\">Como selecionar colunas por \u00edndice usando dplyr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Freq\u00fcentemente, voc\u00ea pode querer remover uma ou mais colunas de um quadro de dados em R. Felizmente, isso \u00e9 f\u00e1cil de fazer usando a fun\u00e7\u00e3o select() do pacote dplyr . library (dplyr) Este tutorial mostra v\u00e1rios exemplos de como usar esta fun\u00e7\u00e3o na pr\u00e1tica usando o seguinte data frame: #create data frame df &lt;- 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-944","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 deletar colunas em R (com exemplos) \u2013 Estatoriais<\/title>\n<meta name=\"description\" content=\"Uma explica\u00e7\u00e3o simples sobre como remover colunas em R usando a fun\u00e7\u00e3o select() do pacote dplyr.\" \/>\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\/remover-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 deletar colunas em R (com exemplos) \u2013 Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Uma explica\u00e7\u00e3o simples sobre como remover colunas em R usando a fun\u00e7\u00e3o select() do pacote dplyr.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T05:43:59+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\/remover-colunas-em-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/\",\"name\":\"Como deletar colunas em R (com exemplos) \u2013 Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-28T05:43:59+00:00\",\"dateModified\":\"2023-07-28T05:43:59+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Uma explica\u00e7\u00e3o simples sobre como remover colunas em R usando a fun\u00e7\u00e3o select() do pacote dplyr.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/remover-colunas-em-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como excluir colunas em r (com exemplos)\"}]},{\"@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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