{"id":1927,"date":"2023-07-24T10:24:52","date_gmt":"2023-07-24T10:24:52","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/"},"modified":"2023-07-24T10:24:52","modified_gmt":"2023-07-24T10:24:52","slug":"pandas-iteram-sobre-colunas-de-dataframe","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/","title":{"rendered":"Como percorrer colunas no pandas dataframe"},"content":{"rendered":"

<\/p>\n

\n

Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para iterar pelas colunas de um DataFrame do pandas:<\/span><\/p>\n

 for name, values in<\/span> df. iteritems<\/span> ():\n  print<\/span> (values)\n<\/span><\/span><\/strong><\/pre>\n
 Os exemplos a seguir mostram como usar essa sintaxe na pr\u00e1tica com o seguinte DataFrame do pandas:<\/span><\/p>\n
 import<\/span> pandas as<\/span> pd\n\n#createDataFrame\n<\/span>df = pd. DataFrame<\/span> ({' points<\/span> ': [25, 12, 15, 14, 19],\n                   ' assists<\/span> ': [5, 7, 7, 9, 12],\n                   ' rebounds<\/span> ': [11, 8, 10, 6, 6]})\n\n#view DataFrame\n<\/span>df\n\n\tpoints assists rebounds\n0 25 5 11\n1 12 7 8\n2 15 7 10\n3 14 9 6\n4 19 12 6\n<\/strong><\/pre>\n
 Exemplo 1: Iterar em todas as colunas do DataFrame<\/strong><\/span><\/h3>\n
 O c\u00f3digo a seguir mostra como iterar em cada coluna de um DataFrame do pandas:<\/span><\/p>\n
 for name, values in<\/span> df. iteritems<\/span> ():\nprint<\/span> (values)<\/span><\/span>\n\n0 25\n1 12\n2 15\n3 14\n4 19\nName: points, dtype: int64\n0 5\n1 7\n2 7\n3 9\n4 12\nName: assists, dtype: int64\n0 11\n1 8\n2 10\n3 6\n4 6\nName: rebounds, dtype: int64<\/strong><\/pre>\n
 Tamb\u00e9m podemos usar a seguinte sintaxe para percorrer cada coluna e imprimir apenas os nomes das colunas:<\/span><\/p>\n
 for name, values in<\/span> df. iteritems<\/span> ():\nprint<\/span> (name)\n\npoints\nassists\nrebounds\n<\/span><\/span><\/strong><\/pre>\n
 Exemplo 2: Iterar em colunas espec\u00edficas<\/strong><\/span><\/h3>\n
 A sintaxe a seguir mostra como iterar em colunas espec\u00edficas em um DataFrame do pandas:<\/span><\/p>\n
 for<\/span> name, values in<\/span> df[[' points<\/span> ', ' rebounds<\/span> ']]. iteritems<\/span> ():\n  print<\/span> (values)\n\n0 25\n1 12\n2 15\n3 14\n4 19\nName: points, dtype: int64\n0 11\n1 8\n2 10\n3 6\n4 6\nName: rebounds, dtype: int64\n<\/span><\/span><\/strong><\/pre>\n
 Tamb\u00e9m podemos usar a seguinte sintaxe para iterar em um intervalo de colunas espec\u00edficas:<\/span><\/p>\n
 for<\/span> name, values in df. iloc<\/span> [:, 0:2]<\/span><\/span> . iteritems<\/span> ():\n  print<\/span> (values)\n\n0 25\n1 12\n2 15\n3 14\n4 19\nName: points, dtype: int64\n0 5\n1 7\n2 7\n3 9\n4 12\nName: assists, dtype: int64\n<\/span><\/span><\/strong><\/pre>\n
 Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o iteritems()<\/strong> aqui<\/a> .<\/span><\/p>\n
 Recursos adicionais<\/strong><\/span><\/h3>\n
 Como aplicar uma fun\u00e7\u00e3o a colunas selecionadas no Pandas<\/a>
 Como alterar a ordem das colunas no Pandas<\/a>
 Como deletar colunas por \u00edndice no Pandas<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para iterar pelas colunas de um DataFrame do pandas: for name, values in df. iteritems (): print (values) Os exemplos a seguir mostram como usar essa sintaxe na pr\u00e1tica com o seguinte DataFrame do pandas: import pandas as pd #createDataFrame df = pd. DataFrame ({‘ points ‘: [25, […]<\/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-1927","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"\nComo percorrer colunas no Pandas DataFrame - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como iterar pelas 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-iteram-sobre-colunas-de-dataframe\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como percorrer colunas no Pandas DataFrame - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como iterar pelas colunas de um DataFrame do pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T10:24:52+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\/pandas-iteram-sobre-colunas-de-dataframe\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/\",\"name\":\"Como percorrer colunas no Pandas DataFrame - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-24T10:24:52+00:00\",\"dateModified\":\"2023-07-24T10:24:52+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como iterar pelas colunas de um DataFrame do pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-iteram-sobre-colunas-de-dataframe\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como percorrer colunas no pandas dataframe\"}]},{\"@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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