{"id":3529,"date":"2023-07-17T00:25:03","date_gmt":"2023-07-17T00:25:03","guid":{"rendered":"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/"},"modified":"2023-07-17T00:25:03","modified_gmt":"2023-07-17T00:25:03","slug":"pandas-rolando-ao-maximo","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/","title":{"rendered":"Como calcular um m\u00e1ximo m\u00f3vel em pandas (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar os seguintes m\u00e9todos para calcular um valor m\u00e1ximo cont\u00ednuo em um DataFrame do pandas:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: calcular o m\u00e1ximo de deslizamento<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">rolling_max<\/span> '] = df. <span style=\"color: #3366ff;\">values_column<\/span> . <span style=\"color: #3366ff;\">cummax<\/span> ()<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: calcular o m\u00e1ximo m\u00f3vel por grupo<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[' <span style=\"color: #ff0000;\">rolling_max<\/span> '] = df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">group_column<\/span> '). <span style=\"color: #3366ff;\">values_column<\/span> . <span style=\"color: #3366ff;\">cummax<\/span> ()\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: calcule o m\u00e1ximo deslizante<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte DataFrame do pandas que mostra as vendas realizadas todos os dias em uma loja:<\/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;\">#createDataFrame<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">day<\/span> ': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12],\n                   ' <span style=\"color: #ff0000;\">sales<\/span> ': [4, 6, 5, 8, 14, 13, 13, 12, 9, 8, 19, 14]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n    day sales\n0 1 4\n1 2 6\n2 3 5\n3 4 8\n4 5 14\n5 6 13\n6 7 13\n7 8 12\n8 9 9\n9 10 8\n10 11 19\n11 12 14\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para criar uma nova coluna que exiba o valor m\u00e1ximo de vendas cont\u00ednuo:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#add column that displays rolling maximum of sales\n<\/span>df[' <span style=\"color: #ff0000;\">rolling_max<\/span> '] = df. <span style=\"color: #3366ff;\">dirty<\/span> . <span style=\"color: #3366ff;\">cummax<\/span> ()\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n    day sales rolling_max\n0 1 4 4\n1 2 6 6\n2 3 5 6\n3 4 8 8\n4 5 14 14\n5 6 13 14\n6 7 13 14\n7 8 12 14\n8 9 9 14\n9 10 8 14\n10 11 19 19\n11 12 14 19<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A nova coluna intitulada <strong>Rolling_max<\/strong> exibe o valor m\u00e1ximo cont\u00ednuo de vendas.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2:<\/strong><\/span> <span style=\"color: #000000;\"><strong>calcule o m\u00e1ximo m\u00f3vel por grupo<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Digamos que temos o seguinte DataFrame do pandas que mostra as vendas realizadas todos os dias em duas lojas diferentes:<\/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;\">#createDataFrame<\/span>\ndf = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">store<\/span> ': ['A', 'A', 'A', 'A', 'A', 'A',\n                             'B', 'B', 'B', 'B', 'B', 'B'],\n                   ' <span style=\"color: #ff0000;\">day<\/span> ': [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12],\n                   ' <span style=\"color: #ff0000;\">sales<\/span> ': [4, 6, 5, 8, 14, 13, 13, 12, 9, 8, 19, 14]})\n\n<span style=\"color: #008080;\">#view DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   store day sales\n0 to 1 4\n1 to 2 6\n2 to 3 5\n3 to 4 8\n4 to 5 14\n5 to 6 13\n6 B 7 13\n7 B 8 12\n8 B 9 9\n9 B 10 8\n10 B 11 19\n11 B 12 14\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para criar uma nova coluna que exibe o valor m\u00e1ximo de vendas cont\u00ednuo agrupado por loja:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#add column that displays rolling maximum of sales grouped by store\n<\/span>df[' <span style=\"color: #ff0000;\">rolling_max<\/span> '] = df. <span style=\"color: #3366ff;\">groupby<\/span> (' <span style=\"color: #ff0000;\">store<\/span> '). <span style=\"color: #3366ff;\">dirty<\/span> . <span style=\"color: #3366ff;\">cummax<\/span> ()\n\n<span style=\"color: #008080;\">#view updated DataFrame\n<\/span><span style=\"color: #008000;\">print<\/span> (df)\n\n   store day sales rolling_max\n0 A 1 4 4\n1 to 2 6 6\n2 to 3 5 6\n3 to 4 8 8\n4 to 5 14 14\n5 to 6 13 14\n6 B 7 13 13\n7 B 8 12 13\n8 B 9 9 13\n9 B 10 8 13\n10 B 11 19 19\n11 B 12 14 19<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A nova coluna intitulada <strong>Rolling_max<\/strong> exibe o valor m\u00e1ximo cont\u00ednuo de vendas, agrupado por loja.<\/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 opera\u00e7\u00f5es comuns em pandas:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/pandas-descartam-linhas-com-condicao\/\" target=\"_blank\" rel=\"noopener\">Como excluir linhas no Pandas DataFrame com base na condi\u00e7\u00e3o<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-filtram-multiplas-condicoes\/\" target=\"_blank\" rel=\"noopener\">Como filtrar um DataFrame do Pandas em m\u00faltiplas condi\u00e7\u00f5es<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/pandas-ausentes\/\" target=\"_blank\" rel=\"noopener\">Como usar o filtro \u201cNOT IN\u201d no Pandas DataFrame<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar os seguintes m\u00e9todos para calcular um valor m\u00e1ximo cont\u00ednuo em um DataFrame do pandas: M\u00e9todo 1: calcular o m\u00e1ximo de deslizamento df[&#8216; rolling_max &#8216;] = df. values_column . cummax () M\u00e9todo 2: calcular o m\u00e1ximo m\u00f3vel por grupo df[&#8216; rolling_max &#8216;] = df. groupby (&#8216; group_column &#8216;). values_column . cummax () Os [&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-3529","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 um m\u00e1ximo m\u00f3vel em pandas (com exemplos) - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular um valor m\u00e1ximo m\u00f3vel em 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-rolando-ao-maximo\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular um m\u00e1ximo m\u00f3vel em pandas (com exemplos) - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular um valor m\u00e1ximo m\u00f3vel em pandas, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-17T00:25:03+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-rolando-ao-maximo\/\",\"url\":\"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/\",\"name\":\"Como calcular um m\u00e1ximo m\u00f3vel em pandas (com exemplos) - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-17T00:25:03+00:00\",\"dateModified\":\"2023-07-17T00:25:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular um valor m\u00e1ximo m\u00f3vel em pandas, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/pandas-rolando-ao-maximo\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular um m\u00e1ximo m\u00f3vel 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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