{"id":2184,"date":"2023-07-23T08:38:06","date_gmt":"2023-07-23T08:38:06","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/"},"modified":"2023-07-23T08:38:06","modified_gmt":"2023-07-23T08:38:06","slug":"pandas-selecionam-multiplas-colunas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/","title":{"rendered":"Como selecionar v\u00e1rias colunas em pandas (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Existem tr\u00eas m\u00e9todos b\u00e1sicos que voc\u00ea pode usar para selecionar v\u00e1rias colunas de um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: selecione colunas por \u00edndice<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df_new = df. <span style=\"color: #3366ff;\">iloc<\/span> [:,[0,1,3]]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: selecionar colunas no intervalo do \u00edndice<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df_new = df. <span style=\"color: #3366ff;\">iloc<\/span> [:, 0:3]<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 3: selecionar colunas por nome<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df_new = df[[' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ']]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo com o seguinte DataFrame do pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#createDataFrame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">points<\/span> ': [25, 12, 15, 14, 19, 23, 25, 29],\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;\">blocks<\/span> ': [4, 7, 7, 6, 5, 8, 9, 10]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tpoints assists rebounds blocks\n0 25 5 11 4\n1 12 7 8 7\n2 15 7 10 7\n3 14 9 6 6\n4 19 12 6 5\n5 23 9 5 8\n6 25 9 9 9\n7 29 4 12 10\n<\/strong><\/span><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: selecione colunas por \u00edndice<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar colunas nas posi\u00e7\u00f5es de \u00edndice 0, 1 e 3:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select columns in index positions 0, 1, and 3\n<\/span>df_new = df. <span style=\"color: #3366ff;\">iloc<\/span> [:,[0,1,3]]\n\n<span style=\"color: #008080;\">#view new DataFrame\n<\/span>df_new\n\n        points assists blocks\n0 25 5 4\n1 12 7 7\n2 15 7 7\n3 14 9 6\n4 19 12 5\n5 23 9 8\n6 25 9 9\n7 29 4 10\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que as colunas nas posi\u00e7\u00f5es de \u00edndice 0, 1 e 3 est\u00e3o selecionadas.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : A primeira coluna de um DataFrame do pandas est\u00e1 localizada na posi\u00e7\u00e3o 0.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: selecionar colunas no intervalo do \u00edndice<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar colunas no intervalo de \u00edndices de 0 a 3:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select columns in index range 0 to 3\n<\/span>df_new = df. <span style=\"color: #3366ff;\">iloc<\/span> [:, 0:3]\n\n<span style=\"color: #008080;\">#view new DataFrame\n<\/span>df_new\n\n        points assists rebounds\n0 25 5 11\n1 12 7 8\n2 15 7 10\n3 14 9 6\n4 19 12 6\n5 23 9 5\n6 25 9 9\n7 29 4 12\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que a coluna localizada no \u00faltimo valor do intervalo (3) n\u00e3o ser\u00e1 inclu\u00edda na sa\u00edda.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 3: selecionar colunas por nome<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar colunas por nome:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#select columns called 'points' and 'blocks'\n<\/span>df_new = df[[' <span style=\"color: #ff0000;\">points<\/span> ', ' <span style=\"color: #ff0000;\">blocks<\/span> ']]\n\n<span style=\"color: #008080;\">#view new DataFrame\n<\/span>df_new\n\n        point blocks\n0 25 4\n1 12 7\n2 15 7\n3 14 6\n4 19 5\n5 23 8\n6 25 9\n7 29 10\n<\/span><\/span><\/strong><\/pre>\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 em pandas:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/nomes-de-colunas-da-lista-pandas\/\" target=\"_blank\" rel=\"noopener\">Como listar todos os nomes de colunas no Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/soltar-pandas-de-coluna\/\" target=\"_blank\" rel=\"noopener\">Como deletar colunas no Pandas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-converte-indice-em-coluna\/\" target=\"_blank\" rel=\"noopener\">Como converter \u00edndice em coluna no Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Existem tr\u00eas m\u00e9todos b\u00e1sicos que voc\u00ea pode usar para selecionar v\u00e1rias colunas de um DataFrame do pandas: M\u00e9todo 1: selecione colunas por \u00edndice df_new = df. iloc [:,[0,1,3]] M\u00e9todo 2: selecionar colunas no intervalo do \u00edndice df_new = df. iloc [:, 0:3] M\u00e9todo 3: selecionar colunas por nome df_new = df[[&#8216; col1 &#8216;, &#8216; col2 [&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-2184","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 selecionar m\u00faltiplas colunas no Pandas (com exemplos) \u2013 Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como selecionar m\u00faltiplas colunas de um DataFrame do pandas, 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\" href=\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como selecionar m\u00faltiplas colunas no Pandas (com exemplos) \u2013 Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como selecionar m\u00faltiplas colunas de um DataFrame do pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T08:38:06+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-selecionam-multiplas-colunas\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/\",\"name\":\"Como selecionar m\u00faltiplas colunas no Pandas (com exemplos) \u2013 Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-23T08:38:06+00:00\",\"dateModified\":\"2023-07-23T08:38:06+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como selecionar m\u00faltiplas colunas de um DataFrame do pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-selecionam-multiplas-colunas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como selecionar v\u00e1rias colunas em pandas (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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