{"id":1206,"date":"2023-07-27T07:12:26","date_gmt":"2023-07-27T07:12:26","guid":{"rendered":"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/"},"modified":"2023-07-27T07:12:26","modified_gmt":"2023-07-27T07:12:26","slug":"subconjunto-por-intervalo-de-datas-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/","title":{"rendered":"Como subdefinir por um intervalo de datas em r (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">A maneira mais simples de subdefinir um quadro de dados por um intervalo de datas em R \u00e9 usar a seguinte sintaxe:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>df[df$date <span style=\"color: #3366ff;\">&gt;=<\/span> \" <span style=\"color: #008000;\">some date<\/span> \" <span style=\"color: #3366ff;\">&amp;<\/span> df$date <span style=\"color: #3366ff;\">&lt;=<\/span> \" <span style=\"color: #008000;\">some date<\/span> \", ]\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este tutorial fornece v\u00e1rios exemplos de uso pr\u00e1tico desta fun\u00e7\u00e3o.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: subconjunto entre duas datas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar linhas em um quadro de dados entre duas datas inclusivas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(0)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data.frame(date = <span style=\"color: #3366ff;\">as<\/span> . <span style=\"color: #3366ff;\">Date<\/span> (\" <span style=\"color: #008000;\">2021-01-01<\/span> \") - 0:19,\n                 sales = <span style=\"color: #3366ff;\">runif<\/span> (20, 10, 500) + <span style=\"color: #3366ff;\">seq<\/span> (50, 69)^2)\n\n<span style=\"color: #008080;\">#view first six rows<\/span>\nhead(df)\n\n        dirty date\n1 2021-01-01 2949,382\n2 2020-12-31 2741.099\n3 2020-12-30 2896.341\n4 2020-12-29 3099.698\n5 2020-12-28 3371.022\n6 2020-12-27 3133.824\n\n<span style=\"color: #008080;\">#subset between two dates, inclusive<\/span>\ndf[df$date <span style=\"color: #3366ff;\">&gt;=<\/span> \" <span style=\"color: #008000;\">2020-12-25<\/span> \" <span style=\"color: #3366ff;\">&amp;<\/span> df$date <span style=\"color: #3366ff;\">&lt;=<\/span> \" <span style=\"color: #008000;\">2020-12-28<\/span> \", ]\n\n        dirty dates\n5 2020-12-28 3371.022\n6 2020-12-27 3133.824\n7 2020-12-26 3586.211\n8 2020-12-25 3721.891\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Basta modificar os sinais superior e inferior para selecionar as linhas entre duas datas exclusivas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(0)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data.frame(date = <span style=\"color: #3366ff;\">as<\/span> . <span style=\"color: #3366ff;\">Date<\/span> (\" <span style=\"color: #008000;\">2021-01-01<\/span> \") - 0:19,\n                 sales = <span style=\"color: #3366ff;\">runif<\/span> (20, 10, 500) + <span style=\"color: #3366ff;\">seq<\/span> (50, 69)^2)\n\n<span style=\"color: #008080;\">#subset between two dates, exclusive<\/span>\ndf[df$date <span style=\"color: #3366ff;\">&gt;<\/span> \" <span style=\"color: #008000;\">2020-12-25<\/span> \" <span style=\"color: #3366ff;\">&amp;<\/span> df$date <span style=\"color: #3366ff;\">&lt;<\/span> \" <span style=\"color: #008000;\">2020-12-28<\/span> \", ]\n\n        dirty date\n6 2020-12-27 3133.824\n7 2020-12-26 3586.211\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: subconjunto ap\u00f3s uma determinada data<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar linhas em um quadro de dados que aparecem ap\u00f3s uma determinada data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(0)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data.frame(date = <span style=\"color: #3366ff;\">as<\/span> . <span style=\"color: #3366ff;\">Date<\/span> (\" <span style=\"color: #008000;\">2021-01-01<\/span> \") - 0:19,\n                 sales = <span style=\"color: #3366ff;\">runif<\/span> (20, 10, 500) + <span style=\"color: #3366ff;\">seq<\/span> (50, 69)^2)\n\n<span style=\"color: #008080;\">#subset after a certain date<\/span>\ndf[df$date <span style=\"color: #3366ff;\">&gt;=<\/span> \" <span style=\"color: #008000;\">2020-12-22<\/span> \", ]\n\n         dirty dates\n1 2021-01-01 2949.382\n2 2020-12-31 2741.099\n3 2020-12-30 2896.341\n4 2020-12-29 3099.698\n5 2020-12-28 3371.022\n6 2020-12-27 3133.824\n7 2020-12-26 3586.211\n8 2020-12-25 3721.891\n9 2020-12-24 3697.791\n10 2020-12-23 3799.266\n11 2020-12-22 3640.275<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 3: subconjunto antes de uma determinada data<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como selecionar linhas de um quadro de dados que ocorrem antes de uma determinada data:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set.seed(0)\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data.frame(date = <span style=\"color: #3366ff;\">as<\/span> . <span style=\"color: #3366ff;\">Date<\/span> (\" <span style=\"color: #008000;\">2021-01-01<\/span> \") - 0:19,\n                 sales = <span style=\"color: #3366ff;\">runif<\/span> (20, 10, 500) + <span style=\"color: #3366ff;\">seq<\/span> (50, 69)^2)\n\n<span style=\"color: #008080;\">#subset before a certain date<\/span>\ndf[df$date <span style=\"color: #3366ff;\">&lt;<\/span> \" <span style=\"color: #008000;\">2020-12-22<\/span> \", ]\n\n         dirty date\n12 2020-12-21 3831.928\n13 2020-12-20 3940.513\n14 2020-12-19 4315.641\n15 2020-12-18 4294.211\n16 2020-12-17 4612.222\n17 2020-12-16 4609.873\n18 2020-12-15 4850.633\n19 2020-12-14 5120.034\n20 2020-12-13 4957.217<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/tracar-series-temporais-em-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como tra\u00e7ar uma s\u00e9rie temporal em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/extrair-ano-da-data-em-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como extrair ano da data em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/dados-diarios-agregados-em-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Como agregar dados di\u00e1rios em dados mensais e anuais em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A maneira mais simples de subdefinir um quadro de dados por um intervalo de datas em R \u00e9 usar a seguinte sintaxe: df[df$date &gt;= &#8221; some date &#8221; &amp; df$date &lt;= &#8221; some date &#8220;, ] Este tutorial fornece v\u00e1rios exemplos de uso pr\u00e1tico desta fun\u00e7\u00e3o. Exemplo 1: subconjunto entre duas datas O c\u00f3digo a [&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-1206","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 subdefinir por um intervalo de datas em R (com exemplos)<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como subdefinir um quadro de dados por intervalo de datas em R, 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\/subconjunto-por-intervalo-de-datas-em-r\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como subdefinir por um intervalo de datas em R (com exemplos)\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como subdefinir um quadro de dados por intervalo de datas em R, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-27T07:12:26+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\/subconjunto-por-intervalo-de-datas-em-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/\",\"name\":\"Como subdefinir por um intervalo de datas em R (com exemplos)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-27T07:12:26+00:00\",\"dateModified\":\"2023-07-27T07:12:26+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como subdefinir um quadro de dados por intervalo de datas em R, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/subconjunto-por-intervalo-de-datas-em-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como subdefinir por um intervalo de datas em r (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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