{"id":2466,"date":"2023-07-22T03:47:15","date_gmt":"2023-07-22T03:47:15","guid":{"rendered":"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/"},"modified":"2023-07-22T03:47:15","modified_gmt":"2023-07-22T03:47:15","slug":"media-das-colunas-selecionadas-do-pandas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/","title":{"rendered":"Como calcular a m\u00e9dia das colunas selecionadas no pandas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para calcular valores m\u00e9dios de linha para colunas selecionadas em um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: Calcular o valor m\u00e9dio da linha para todas as colunas<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df. <span style=\"color: #3366ff;\">mean<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: Calcular o valor m\u00e9dio da linha para colunas espec\u00edficas<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[[' <span style=\"color: #ff0000;\">col1<\/span> ', ' <span style=\"color: #ff0000;\">col3<\/span> ']]. <span style=\"color: #3366ff;\">mean<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica com o seguinte DataFrame do pandas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <b><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> ': [14, 19, 9, 21, 25, 29, 20, 11],\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\n<span style=\"color: #008080;\">#view DataFrame\n<\/span>df\n\n\tpoints assists rebounds\n0 14 5 11\n1 19 7 8\n2 9 7 10\n3 21 9 6\n4 25 12 6\n5 29 9 5\n6 20 9 9\n7 11 4 12<\/b><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: Calcular o valor m\u00e9dio da linha para todas as colunas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como criar uma nova coluna no DataFrame que exibe o valor m\u00e9dio da linha para todas as colunas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define new column that shows the average row value for all columns<\/span>\ndf[' <span style=\"color: #ff0000;\">average_all<\/span> '] = df. <span style=\"color: #3366ff;\">mean<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )\n\n<span style=\"color: #008080;\">#view updated DataFrame<\/span>\ndf\n\n\tpoints assists rebounds average_all\n0 14 5 11 10.000000\n1 19 7 8 11.333333\n2 9 7 10 8.666667\n3 21 9 6 12.000000\n4 25 12 6 14.333333\n5 29 9 5 14.333333\n6 20 9 9 12.666667\n7 11 4 12 9.000000\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Veja como interpretar o resultado:<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor m\u00e9dio da primeira linha \u00e9 calculado da seguinte forma: (14+5+11) \/ 3 = <strong>10<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor m\u00e9dio da segunda linha \u00e9 calculado da seguinte forma: (19+7+8) \/ 3 = <strong>11,33<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">E assim por diante.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: Calcular o valor m\u00e9dio da linha para colunas espec\u00edficas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como calcular o valor m\u00e9dio da linha apenas para as colunas &#8220;pontos&#8221; e &#8220;rebotes&#8221;:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008080;\">#define new column that shows average of row values for points and rebounds columns\n<\/span>df[' <span style=\"color: #ff0000;\">avg_points_rebounds<\/span> '] = df[[' <span style=\"color: #ff0000;\">points<\/span> ', ' <span style=\"color: #ff0000;\">rebounds<\/span> ']]. <span style=\"color: #3366ff;\">mean<\/span> (axis= <span style=\"color: #008000;\">1<\/span> )\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span>df\n\n        points assists rebounds avg_points_rebounds\n0 14 5 11 12.5\n1 19 7 8 13.5\n2 9 7 10 9.5\n3 21 9 6 13.5\n4 25 12 6 15.5\n5 29 9 5 17.0\n6 20 9 9 14.5\n7 11 4 12 11.5<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Veja como interpretar o resultado:<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor m\u00e9dio de \u201cpontos\u201d e \u201crebotes\u201d na primeira linha \u00e9 calculado da seguinte forma: (14+11) \/ 2 = <strong>12,5<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O valor m\u00e9dio de \u201cpontos\u201d e \u201crebotes\u201d na segunda linha \u00e9 calculado da seguinte forma: (19+8) \/ 2 = <strong>13,5<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">E assim por diante.<\/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\/tamanho-medio-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular uma m\u00e9dia aparada em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/media-geometrica-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular a m\u00e9dia geom\u00e9trica em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-substituem-valores-na-coluna-com-base-no-estado\/\" target=\"_blank\" rel=\"noopener\">Como substituir valores na coluna Pandas com base na condi\u00e7\u00e3o<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para calcular valores m\u00e9dios de linha para colunas selecionadas em um DataFrame do pandas: M\u00e9todo 1: Calcular o valor m\u00e9dio da linha para todas as colunas df. mean (axis= 1 ) M\u00e9todo 2: Calcular o valor m\u00e9dio da linha para colunas espec\u00edficas df[[&#8216; col1 &#8216;, &#8216; col3 &#8216;]]. mean [&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-2466","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 calcular a m\u00e9dia das colunas selecionadas no Pandas \u2013 Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular a m\u00e9dia das colunas selecionadas 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\/media-das-colunas-selecionadas-do-pandas\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular a m\u00e9dia das colunas selecionadas no Pandas \u2013 Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular a m\u00e9dia das colunas selecionadas no pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T03:47:15+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\/media-das-colunas-selecionadas-do-pandas\/\",\"url\":\"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/\",\"name\":\"Como calcular a m\u00e9dia das colunas selecionadas no Pandas \u2013 Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-22T03:47:15+00:00\",\"dateModified\":\"2023-07-22T03:47:15+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular a m\u00e9dia das colunas selecionadas no pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/media-das-colunas-selecionadas-do-pandas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular a m\u00e9dia das colunas selecionadas 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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