{"id":1731,"date":"2023-07-25T05:15:38","date_gmt":"2023-07-25T05:15:38","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/"},"modified":"2023-07-25T05:15:38","modified_gmt":"2023-07-25T05:15:38","slug":"pandas-combinam-duas-colunas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/","title":{"rendered":"Como combinar duas colunas em pandas (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a seguinte sintaxe para combinar duas colunas de texto em uma em um DataFrame do pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">new_column<\/span> '] = df[' <span style=\"color: #ff0000;\">column1<\/span> '] + df[' <span style=\"color: #ff0000;\">column2<\/span> ']\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Se uma das colunas ainda n\u00e3o for uma string, voc\u00ea poder\u00e1 convert\u00ea-la usando o comando <strong>astype(str)<\/strong> :<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">new_column<\/span> '] = df[' <span style=\"color: #ff0000;\">column1<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> ( <span style=\"color: #008000;\">str<\/span> )+df[' <span style=\"color: #ff0000;\">column2<\/span> ']<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">E voc\u00ea pode usar a seguinte sintaxe para combinar v\u00e1rias colunas de texto em uma:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">new_column<\/span> '] = df[[' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col2<\/span> ', ' <span style=\"color: #ff0000;\">col3<\/span> ', ...]]. <span style=\"color: #3366ff;\">agg<\/span> (' '. <span style=\"color: #3366ff;\">join<\/span> , axis= <span style=\"color: #008000;\">1<\/span> )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como combinar colunas de texto na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: Combine duas colunas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como combinar duas colunas de texto em uma em um 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<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['Mavs', 'Lakers', 'Spurs', 'Cavs'],\n                   ' <span style=\"color: #ff0000;\">first<\/span> ': ['Dirk', 'Kobe', 'Tim', 'Lebron'],\n                   ' <span style=\"color: #ff0000;\">last<\/span> ': ['Nowitzki', 'Bryant', 'Duncan', 'James'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [26, 31, 22, 29]})\n\n<span style=\"color: #008080;\">#combine first and last name column into new column, with space in between<\/span>\ndf[' <span style=\"color: #ff0000;\">full_name<\/span> '] = df[' <span style=\"color: #ff0000;\">first<\/span> '] + ' ' + df[' <span style=\"color: #ff0000;\">last<\/span> ']\n\n<span style=\"color: #008080;\">#view resulting dataFrame\n<span style=\"color: #000000;\">df<\/span>\n\n<span style=\"color: #000000;\">team first last<\/span> <span style=\"color: #000000;\">points full_name\n0 Mavs Dirk Nowitzki<\/span> <span style=\"color: #000000;\">26 Dirk Nowitzki\n1 Lakers Kobe Bryant<\/span> <span style=\"color: #000000;\">31 Kobe Bryant\n2 Spurs Tim Duncan<\/span> <span style=\"color: #000000;\">22 Tim Duncan\n3 Cavs LeBron James<\/span> <span style=\"color: #000000;\">29 LeBron James\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Unimos a coluna do nome e do sobrenome com um espa\u00e7o entre elas, mas tamb\u00e9m poder\u00edamos usar um separador diferente, como um h\u00edfen:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#combine first and last name column into new column, with dash in between<\/span>\ndf[' <span style=\"color: #ff0000;\">full_name<\/span> '] = df[' <span style=\"color: #ff0000;\">first<\/span> '] + ' <span style=\"color: #ff0000;\">-<\/span> ' + df[' <span style=\"color: #ff0000;\">last<\/span> ']\n\n<span style=\"color: #008080;\">#view resulting dataFrame\n<span style=\"color: #000000;\">df<\/span>\n\n<span style=\"color: #000000;\">team first last<\/span> <span style=\"color: #000000;\">points full_name\n0 Mavs Dirk Nowitzki<\/span> <span style=\"color: #000000;\">26 Dirk<\/span> - <span style=\"color: #000000;\">Nowitzki\n1 Lakers Kobe Bryant<\/span> <span style=\"color: #000000;\">31 Kobe<\/span> - <span style=\"color: #000000;\">Bryant\n2 Spurs Tim Duncan<\/span> <span style=\"color: #000000;\">22 Tim<\/span> - <span style=\"color: #000000;\">Duncan\n3 Cavs Lebron James<\/span> <span style=\"color: #000000;\">29 Lebron<\/span> - <span style=\"color: #000000;\">James<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: converter em texto e combinar duas colunas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como converter uma coluna em texto e depois junt\u00e1-la a outra coluna:<\/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<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['Mavs', 'Lakers', 'Spurs', 'Cavs'],\n                   ' <span style=\"color: #ff0000;\">first<\/span> ': ['Dirk', 'Kobe', 'Tim', 'Lebron'],\n                   ' <span style=\"color: #ff0000;\">last<\/span> ': ['Nowitzki', 'Bryant', 'Duncan', 'James'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [26, 31, 22, 29]})\n\n<span style=\"color: #008080;\">#convert points to text, then join to last name column<\/span>\ndf[' <span style=\"color: #ff0000;\">name_points<\/span> '] = df[' <span style=\"color: #ff0000;\">last<\/span> '] + df[' <span style=\"color: #ff0000;\">points<\/span> ']. <span style=\"color: #3366ff;\">astype<\/span> ( <span style=\"color: #008000;\">str<\/span> )\n\n<span style=\"color: #008080;\">#view resulting dataFrame\n<span style=\"color: #000000;\">df<\/span>\n\n        <span style=\"color: #000000;\">team first last<\/span> <span style=\"color: #000000;\">points name_points\n0 Mavs Dirk Nowitzki<\/span> <span style=\"color: #000000;\">26 Nowitzki26\n1 Lakers Kobe Bryant<\/span> <span style=\"color: #000000;\">31 Bryant31\n2 Spurs Tim Duncan<\/span> <span style=\"color: #000000;\">22 Duncan22\n3 Cavs LeBron James<\/span> <span style=\"color: #000000;\">29 James29<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 3: Combine mais de duas colunas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como unir v\u00e1rias colunas em uma:<\/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<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">team<\/span> ': ['Mavs', 'Lakers', 'Spurs', 'Cavs'],\n                   ' <span style=\"color: #ff0000;\">first<\/span> ': ['Dirk', 'Kobe', 'Tim', 'Lebron'],\n                   ' <span style=\"color: #ff0000;\">last<\/span> ': ['Nowitzki', 'Bryant', 'Duncan', 'James'],\n                   ' <span style=\"color: #ff0000;\">points<\/span> ': [26, 31, 22, 29]})\n\n<span style=\"color: #008080;\">#join team, first name, and last name into one column<\/span>\ndf[' <span style=\"color: #ff0000;\">team_and_name<\/span> '] = df[[' <span style=\"color: #ff0000;\">team<\/span> ', ' <span style=\"color: #ff0000;\">first<\/span> ', ' <span style=\"color: #ff0000;\">last<\/span> ']]. <span style=\"color: #3366ff;\">agg<\/span> (' '. <span style=\"color: #3366ff;\">join<\/span> , axis= <span style=\"color: #008000;\">1<\/span> )\n\n<span style=\"color: #008080;\">#view resulting dataFrame\n<span style=\"color: #000000;\">df<\/span>\n\n<span style=\"color: #000000;\">team first last points team_name\n0 Mavs Dirk Nowitzki 26 Mavs Dirk Nowitzki\n1 Lakers Kobe Bryant 31 Lakers Kobe Bryant\n2 Spurs Tim Duncan 22 Spurs Tim Duncan\n3 Cavs Lebron James 29 Cavs Lebron James<\/span><\/span><\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/diferenca-de-pandas-entre-duas-colunas\/\" target=\"_blank\" rel=\"noopener\">Pandas: como encontrar a diferen\u00e7a entre duas colunas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/diferenca-de-pandas-entre-linhas\/\" target=\"_blank\" rel=\"noopener\">Pandas: como encontrar a diferen\u00e7a entre duas linhas<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-classifica-colunas-por-nome\/\" target=\"_blank\" rel=\"noopener\">Pandas: como classificar colunas por nome<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a seguinte sintaxe para combinar duas colunas de texto em uma em um DataFrame do pandas: df[&#8216; new_column &#8216;] = df[&#8216; column1 &#8216;] + df[&#8216; column2 &#8216;] Se uma das colunas ainda n\u00e3o for uma string, voc\u00ea poder\u00e1 convert\u00ea-la usando o comando astype(str) : df[&#8216; new_column &#8216;] = df[&#8216; column1 &#8216;]. astype [&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-1731","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 combinar duas colunas em Pandas (com exemplos)<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como combinar duas colunas em 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-combinam-duas-colunas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como combinar duas colunas em Pandas (com exemplos)\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como combinar duas colunas em um DataFrame do pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T05:15:38+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=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/\",\"name\":\"Como combinar duas colunas em Pandas (com exemplos)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-25T05:15:38+00:00\",\"dateModified\":\"2023-07-25T05:15:38+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como combinar duas colunas em um DataFrame do pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-combinam-duas-colunas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como combinar duas 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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