{"id":2031,"date":"2023-07-24T00:23:35","date_gmt":"2023-07-24T00:23:35","guid":{"rendered":"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/"},"modified":"2023-07-24T00:23:35","modified_gmt":"2023-07-24T00:23:35","slug":"pesquisa-de-panda","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/","title":{"rendered":"Como fazer um vlookup no pandas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para realizar um VLOOKUP (semelhante ao Excel) no pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>p.d. <span style=\"color: #3366ff;\">merge<\/span> (df1,\n         df2,\n         on = ' <span style=\"color: #ff0000;\">column_name<\/span> ',\n         how = ' <span style=\"color: #ff0000;\">left<\/span> ')\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">O exemplo passo a passo a seguir mostra como usar essa sintaxe na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Etapa 1: crie dois DataFrames<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Primeiro, vamos importar pandas e criar dois DataFrames de 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;\">#define first DataFrame\n<\/span>df1 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">player<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F'],\n                    ' <span style=\"color: #ff0000;\">team<\/span> ': ['Mavs', 'Mavs', 'Mavs', 'Mavs', 'Nets', 'Nets']})\n\n<span style=\"color: #008080;\">#define second DataFrame\n<\/span>df2 = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">player<\/span> ': ['A', 'B', 'C', 'D', 'E', 'F'],\n                    ' <span style=\"color: #ff0000;\">points<\/span> ': [22, 29, 34, 20, 15, 19]})\n\n<span style=\"color: #008080;\">#view df1\n<\/span><span style=\"color: #008000;\">print<\/span> (df1)\n\n  player team\n0 A Mavs\n1 B Mavs\n2C Mavs\n3 D Mavs\n4 E Nets\n5 F Nets\n\n<span style=\"color: #008080;\">#view df2\n<\/span><span style=\"color: #008000;\">print<\/span> (df2)\n\n  player points\n0 to 22\n1 B 29\n2 C 34\n3 D 20\n4 E 15\n5 F 19\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Etapa 2: execute a fun\u00e7\u00e3o VLOOKUP<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A fun\u00e7\u00e3o <strong>VLOOKUP<\/strong> no Excel permite encontrar um valor em uma tabela comparando-o em uma coluna.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como encontrar o time de um jogador usando <strong>pd.merge()<\/strong> para combinar os nomes dos jogadores entre as duas tabelas e retornar o time do jogador:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#perform VLOOKUP<\/span>\njoined_df = pd. <span style=\"color: #3366ff;\">merge<\/span> (df1,\n                     df2,\n                     we = ' <span style=\"color: #ff0000;\">player<\/span> ',\n                     how = ' <span style=\"color: #ff0000;\">left<\/span> ')\n\n<span style=\"color: #008080;\">#view results\n<\/span>joined_df\n\n\tplayer team points\n0 A Mavs 22\n1 B Mavs 29\n2 C Mavs 34\n3D Mavs 20\n4 E Nets 15\n5 F Nets 19<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que o DataFrame do pandas resultante cont\u00e9m informa\u00e7\u00f5es sobre o jogador, seu time e pontos marcados.<\/span><\/p>\n<p> <span style=\"joined_df = pd.merge(df1, df2, on ='player', how ='left') joined_dfcolor: #000000;\">Voc\u00ea pode encontrar a documenta\u00e7\u00e3o online completa da fun\u00e7\u00e3o <strong>merge()<\/strong> do pandas <a href=\"https:\/\/pandas.pydata.org\/docs\/reference\/api\/pandas.DataFrame.merge.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 em Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/estatologia-explica-conceitos-de-forma-simples-e-direta-facilitamos-o-aprendizado-de-estatistica\/\" target=\"_blank\" rel=\"noopener\">Como criar tabelas din\u00e2micas em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/correlacao-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular a correla\u00e7\u00e3o em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/percentis-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular percentis em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para realizar um VLOOKUP (semelhante ao Excel) no pandas: p.d. merge (df1, df2, on = &#8216; column_name &#8216;, how = &#8216; left &#8216;) O exemplo passo a passo a seguir mostra como usar essa sintaxe na pr\u00e1tica. Etapa 1: crie dois DataFrames Primeiro, vamos importar pandas e criar [&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-2031","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 fazer um VLOOKUP no Pandas - Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como realizar um VLOOKUP (semelhante ao Excel) no 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\/pesquisa-de-panda\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como fazer um VLOOKUP no Pandas - Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como realizar um VLOOKUP (semelhante ao Excel) no pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T00:23:35+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=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/\",\"url\":\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/\",\"name\":\"Como fazer um VLOOKUP no Pandas - Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-24T00:23:35+00:00\",\"dateModified\":\"2023-07-24T00:23:35+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como realizar um VLOOKUP (semelhante ao Excel) no pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pesquisa-de-panda\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como fazer um vlookup no pandas\"}]},{\"@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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