{"id":3366,"date":"2023-07-17T21:09:51","date_gmt":"2023-07-17T21:09:51","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/"},"modified":"2023-07-17T21:09:51","modified_gmt":"2023-07-17T21:09:51","slug":"pandas-adicionam-coluna-vazia","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/","title":{"rendered":"Como adicionar uma coluna vazia ao pandas dataframe (3 exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para adicionar colunas vazias a um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: adicione uma coluna vazia com espa\u00e7os<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">empty_column<\/span> '] = \"\"\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: adicione uma coluna vazia com valores NaN<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">empty_column<\/span> '] = np. <span style=\"color: #3366ff;\">Nope<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 3: adicionar v\u00e1rias colunas vazias com valores NaN<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[[' <span style=\"color: #ff0000;\">empty1<\/span> ', ' <span style=\"color: #ff0000;\">empty2<\/span> ', ' <span style=\"color: #ff0000;\">empty3<\/span> ']] = np. <span style=\"color: #3366ff;\">Nope<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo com os seguintes DataFrames 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;\">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\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists\n0 to 18 5\n1 B 22 7\n2 C 19 7\n3 D 14 9\n4 E 14 12\n5 F 11 9\n6 G 20 9\n7:28 a.m. 4<\/strong><\/span><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Adicione uma coluna vazia com espa\u00e7os<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar uma coluna vazia com todos os valores vazios:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\"><span style=\"color: #008080;\">#add empty column\n<span style=\"color: #000000;\">df[' <span style=\"color: #ff0000;\">blanks<\/span> '] = \"\"\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists blanks\n0 to 18 5       \n1 B 22 7       \n2 C 19 7       \n3 D 14 9       \n4 E 14 12       \n5 F 11 9       \n6 G 20 9       \n7:28 a.m. 4<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">A nova coluna chamada <strong>espa\u00e7os em branco<\/strong> \u00e9 preenchida com valores vazios.<\/span><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: Adicione uma coluna vazia com valores NaN<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar uma coluna vazia com todos os valores NaN:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\"><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np<\/span>\n\n#add empty column with NaN values\n<span style=\"color: #000000;\">df[' <span style=\"color: #ff0000;\">empty<\/span> '] = np. <span style=\"color: #3366ff;\">Nope<\/span>\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists empty\n0 A 18 5 NaN\n1 B 22 7 NaN\n2 C 19 7 NaN\n3 D 14 9 NaN\n4 E 14 12 NaN\n5 F 11 9 NaN\n6 G 20 9 NaN\n7:28 a.m. 4 NaN<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A nova coluna chamada <b>vazia<\/b> \u00e9 preenchida com valores NaN.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 3: Adicione v\u00e1rias colunas vazias com valores NaN<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como adicionar v\u00e1rias colunas vazias com todos os valores NaN:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\"><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np<\/span>\n\n#add three empty columns with NaN values\n<span style=\"color: #000000;\">df[[' <span style=\"color: #ff0000;\">empty1<\/span> ', ' <span style=\"color: #ff0000;\">empty2<\/span> ', ' <span style=\"color: #ff0000;\">empty3<\/span> ']] = np. <span style=\"color: #3366ff;\">Nope\n<\/span>\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n  team points assists empty1 empty2 empty3\n0 to 18 5 NaN NaN NaN\n1 B 22 7 NaN NaN NaN\n2 C 19 7 NaN NaN NaN\n3 D 14 9 NaN NaN NaN\n4 E 14 12 NaN NaN NaN\n5 F 11 9 NaN NaN NaN\n6 G 20 9 NaN NaN NaN\n7:28 A.M. 4 NaN NaN NaN<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que as tr\u00eas novas colunas s\u00e3o preenchidas com valores NaN.<\/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-renomeiam-colunas\/\" target=\"_blank\" rel=\"noopener\">Como renomear colunas no Pandas<\/a><br \/> Como adicionar uma coluna a um DataFrame do Pandas<br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-mudam-a-ordem-das-colunas\/\" target=\"_blank\" rel=\"noopener\">Como alterar a ordem das colunas no Pandas DataFrame<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para adicionar colunas vazias a um DataFrame do pandas: M\u00e9todo 1: adicione uma coluna vazia com espa\u00e7os df[&#8216; empty_column &#8216;] = &#8220;&#8221; M\u00e9todo 2: adicione uma coluna vazia com valores NaN df[&#8216; empty_column &#8216;] = np. Nope M\u00e9todo 3: adicionar v\u00e1rias colunas vazias com valores NaN df[[&#8216; empty1 &#8216;, [&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-3366","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 adicionar uma coluna vazia ao Pandas DataFrame (3 exemplos) - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como adicionar uma coluna vazia a 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-adicionam-coluna-vazia\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como adicionar uma coluna vazia ao Pandas DataFrame (3 exemplos) - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como adicionar uma coluna vazia a um DataFrame do pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T21:09:51+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-adicionam-coluna-vazia\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/\",\"name\":\"Como adicionar uma coluna vazia ao Pandas DataFrame (3 exemplos) - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-17T21:09:51+00:00\",\"dateModified\":\"2023-07-17T21:09:51+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como adicionar uma coluna vazia a um DataFrame do pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-adicionam-coluna-vazia\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como adicionar uma coluna vazia ao pandas dataframe (3 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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