{"id":3532,"date":"2023-07-17T00:02:54","date_gmt":"2023-07-17T00:02:54","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/"},"modified":"2023-07-17T00:02:54","modified_gmt":"2023-07-17T00:02:54","slug":"pandas-eliminam-todas-as-colunas-exceto","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/","title":{"rendered":"Pandas: como remover todas as colunas, exceto as espec\u00edficas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para remover todas as colunas, exceto algumas, de um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: usando agulhas de croch\u00ea duplas<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df = df[[' <span style=\"color: #ff0000;\">col2<\/span> ', ' <span style=\"color: #ff0000;\">col6<\/span> ']]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: use .loc<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df = df. <span style=\"color: #3366ff;\">loc<\/span> [:,[' <span style=\"color: #ff0000;\">col2<\/span> ',' <span style=\"color: #ff0000;\">col6<\/span> ']]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ambos os m\u00e9todos removem todas as colunas do DataFrame, exceto as colunas chamadas <strong>col2<\/strong> e <strong>col6<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte DataFrame do pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#create DataFrame with six columns\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [18, 22, 19, 14, 14, 11, 20, 28],\n                   ' <span style=\"color: #ff0000;\">assists<\/span> ': [5, 7, 7, 9, 12, 9, 9, 4],\n                   ' <span style=\"color: #ff0000;\">rebounds<\/span> ': [11, 8, 10, 6, 6, 5, 9, 12],\n                   ' <span style=\"color: #ff0000;\">steals<\/span> ': [4, 3, 3, 2, 5, 4, 3, 8],\n                   ' <span style=\"color: #ff0000;\">blocks<\/span> ': [1, 0, 0, 3, 2, 2, 1, 5]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists rebounds steals blocks\n0 A 18 5 11 4 1\n1 B 22 7 8 3 0\n2 C 19 7 10 3 0\n3 D 14 9 6 2 3\n4 E 14 12 6 5 2\n5 F 11 9 5 4 2\n6 G 20 9 9 3 1\n7:28 4 12 8 5\n<\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Remova todas as colunas, exceto aquelas espec\u00edficas, usando colchetes duplos<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para remover todas as colunas do DataFrame, exceto aquelas chamadas <strong>pontos<\/strong> e <strong>blocos<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#drop all columns except points and blocks\n<\/span>df = df[[' <span style=\"color: #ff0000;\">points<\/span> ', ' <span style=\"color: #ff0000;\">blocks<\/span> ']]\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   point blocks\n0 18 1\n1 22 0\n2 19 0\n3 14 3\n4 14 2\n5 11 2\n6 20 1\n7 28 5<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Observe que apenas as colunas <strong>de pontos<\/strong> e <strong>blocos<\/strong> permanecem.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Todas as outras colunas foram removidas.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: Remova todas as colunas, exceto aquelas espec\u00edficas, usando .loc<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Tamb\u00e9m podemos usar a fun\u00e7\u00e3o .loc para remover todas as colunas do DataFrame, exceto aquelas chamadas <strong>pontos<\/strong> e <strong>blocos<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008080;\">#drop all columns except points and blocks\n<\/span>df = df. <span style=\"color: #3366ff;\">loc<\/span> [:, [' <span style=\"color: #ff0000;\">points<\/span> ', ' <span style=\"color: #ff0000;\">blocks<\/span> ']]\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   point blocks\n0 18 1\n1 22 0\n2 19 0\n3 14 3\n4 14 2\n5 11 2\n6 20 1\n7 28 5<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Observe que apenas as colunas <strong>de pontos<\/strong> e <strong>blocos<\/strong> permanecem.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Isso corresponde aos resultados do exemplo anterior.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong> <a href=\"https:\/\/statorials.org\/pt\/pandas-loc-vs-iloc\/\" target=\"_blank\" rel=\"noopener\">Pandas loc vs iloc: qual a diferen\u00e7a?<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras tarefas comuns em pandas:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/pandas-largam-a-primeira-fila\/\" target=\"_blank\" rel=\"noopener\">Como remover a primeira linha no Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-descartam-a-primeira-coluna\/\" target=\"_blank\" rel=\"noopener\">Como remover a primeira coluna no Pandas DataFrame<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-descartam-colunas-duplicadas\/\" target=\"_blank\" rel=\"noopener\">Como remover colunas duplicadas no Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para remover todas as colunas, exceto algumas, de um DataFrame do pandas: M\u00e9todo 1: usando agulhas de croch\u00ea duplas df = df[[&#8216; col2 &#8216;, &#8216; col6 &#8216;]] M\u00e9todo 2: use .loc df = df. loc [:,[&#8216; col2 &#8216;,&#8217; col6 &#8216;]] Ambos os m\u00e9todos removem todas as colunas do DataFrame, [&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-3532","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>Pandas: Como remover todas as colunas, exceto algumas - Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.\" \/>\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\/pandas-eliminam-todas-as-colunas-exceto\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pandas: Como remover todas as colunas, exceto algumas - Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T00:02:54+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\/pandas-eliminam-todas-as-colunas-exceto\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/\",\"name\":\"Pandas: Como remover todas as colunas, exceto algumas - Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-17T00:02:54+00:00\",\"dateModified\":\"2023-07-17T00:02:54+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Pandas: como remover todas as colunas, exceto as espec\u00edficas\"}]},{\"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais\",\"sameAs\":[\"https:\/\/statorials.org\/pt\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Pandas: Como remover todas as colunas, exceto algumas - Estatoriais","description":"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/","og_locale":"pt_PT","og_type":"article","og_title":"Pandas: Como remover todas as colunas, exceto algumas - Estatoriais","og_description":"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.","og_url":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/","og_site_name":"Statorials","article_published_time":"2023-07-17T00:02:54+00:00","author":"Dr. benjamim anderson","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Dr. benjamim anderson","Tempo estimado de leitura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/","url":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/","name":"Pandas: Como remover todas as colunas, exceto algumas - Estatoriais","isPartOf":{"@id":"https:\/\/statorials.org\/pt\/#website"},"datePublished":"2023-07-17T00:02:54+00:00","dateModified":"2023-07-17T00:02:54+00:00","author":{"@id":"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666"},"description":"Este tutorial explica como remover todas as colunas, exceto algumas, em um DataFrame do pandas, com um exemplo.","breadcrumb":{"@id":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/#breadcrumb"},"inLanguage":"pt-PT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pt\/pandas-eliminam-todas-as-colunas-exceto\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Lar","item":"https:\/\/statorials.org\/pt\/"},{"@type":"ListItem","position":2,"name":"Pandas: como remover todas as colunas, exceto as espec\u00edficas"}]},{"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais","sameAs":["https:\/\/statorials.org\/pt"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/3532","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/comments?post=3532"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/3532\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/media?parent=3532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/categories?post=3532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/tags?post=3532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}