{"id":1554,"date":"2023-07-25T22:07:10","date_gmt":"2023-07-25T22:07:10","guid":{"rendered":"https:\/\/statorials.org\/pt\/decis-em-python\/"},"modified":"2023-07-25T22:07:10","modified_gmt":"2023-07-25T22:07:10","slug":"decis-em-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/decis-em-python\/","title":{"rendered":"Como calcular decis em python: com exemplos"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Nas estat\u00edsticas, <strong>decis<\/strong> s\u00e3o n\u00fameros que dividem um conjunto de dados em dez grupos de igual frequ\u00eancia.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O primeiro decil \u00e9 o ponto onde 10% de todos os valores dos dados ficam abaixo. O segundo decil \u00e9 o ponto onde 20% de todos os valores dos dados ficam abaixo, e assim por diante.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para calcular decis de um conjunto de dados em Python:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\nn.p. <span style=\"color: #3366ff;\">percentile<\/span> (var, np. <span style=\"color: #3366ff;\">arange<\/span> (0, 100, 10))\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar esta fun\u00e7\u00e3o na pr\u00e1tica.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: calcular decis em Python<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como criar um conjunto de dados falso com 20 valores e depois calcular os valores decil do conjunto de dados:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">import<\/span> numpy <span style=\"color: #008000;\">as<\/span> np\n\n<span style=\"color: #008080;\">#createdata\n<\/span>data = np. <span style=\"color: #3366ff;\">array<\/span> ([56, 58, 64, 67, 68, 73, 78, 83, 84, 88,\n                 89, 90, 91, 92, 93, 93, 94, 95, 97, 99])\n\n<span style=\"color: #008080;\">#calculate deciles of data\n<\/span>n.p. <span style=\"color: #3366ff;\">percentile<\/span> (data, np. <span style=\"color: #3366ff;\">arange<\/span> (0, 100, 10))\n\narray([56., 63.4, 67.8, 76.5, 83.6, 88.5, 90.4, 92.3, 93.2, 95.2])<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">A maneira de interpretar decis \u00e9 a seguinte:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">10% de todos os valores de dados s\u00e3o inferiores a <strong>63,4<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">20% de todos os valores de dados s\u00e3o inferiores a <strong>67,8<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">30% de todos os valores de dados s\u00e3o inferiores a <strong>76,5<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">40% de todos os valores de dados s\u00e3o inferiores a <strong>83,6<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">50% de todos os valores de dados s\u00e3o inferiores a <strong>88,5<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">60% de todos os valores de dados s\u00e3o inferiores a <strong>90,4<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">70% de todos os valores de dados s\u00e3o inferiores a <strong>92,3<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">80% de todos os valores de dados s\u00e3o inferiores a <strong>93,2<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">90% de todos os valores de dados s\u00e3o inferiores a <strong>95,2<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Observe que o primeiro valor da sa\u00edda (56) indica simplesmente o valor m\u00ednimo do conjunto de dados.<\/span><\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: Colocando Valores em Decis em Python<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Para colocar cada valor de dados em um decil, podemos usar a fun\u00e7\u00e3o pandas <strong>qcut<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Veja como usar esta fun\u00e7\u00e3o para o conjunto de dados que criamos no exemplo anterior:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #993300;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">import<\/span> pandas <span style=\"color: #008000;\">as<\/span> pd\n\n<span style=\"color: #008080;\">#create data frame\n<\/span>df = pd. <span style=\"color: #3366ff;\">DataFrame<\/span> ({' <span style=\"color: #ff0000;\">values<\/span> ': [56, 58, 64, 67, 68, 73, 78, 83, 84, 88,\n                              89, 90, 91, 92, 93, 93, 94, 95, 97, 99]})\n\n<span style=\"color: #008080;\">#calculate decile of each value in data frame\n<\/span>df[' <span style=\"color: #ff0000;\">Decile<\/span> '] = pd. <span style=\"color: #3366ff;\">qcut<\/span> (df[' <span style=\"color: #ff0000;\">values<\/span> '], 10, labels= <span style=\"color: #008000;\">False<\/span> )\n\n<span style=\"color: #008080;\">#display data frame\n<\/span>df\n\n\tvalues Decile\n0 56 0\n1 58 0\n2 64 1\n3 67 1\n4 68 2\n5 73 2\n6 78 3\n7 83 3\n8 84 4\n9 88 4\n10 89 5\n11 90 5\n12 91 6\n13 92 6\n14 93 7\n15 93 7\n16 94 8\n17 95 8\n18 97 9\n19 99 9<\/span>\n<\/span><\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A forma de interpretar o resultado \u00e9 a seguinte:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">O valor dos dados 56 est\u00e1 entre o percentil 0% e 10%, portanto est\u00e1 no decil <strong>0<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor dos dados 58 est\u00e1 entre o percentil 0% e 10%, portanto est\u00e1 no decil <strong>0<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor dos dados 64 est\u00e1 entre o percentil 10% e 20%, portanto est\u00e1 no decil <strong>1<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor dos dados 67 fica entre o percentil 10% e 20%, portanto cai no decil <strong>1<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor dos dados 68 fica entre o percentil 20% e 30%, portanto cai no decil <strong>2<\/strong> .<\/span><\/li>\n<\/ul>\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> <a href=\"https:\/\/statorials.org\/pt\/percentis-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular percentis em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/intervalo-interquartil-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular o intervalo interquartil em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nas estat\u00edsticas, decis s\u00e3o n\u00fameros que dividem um conjunto de dados em dez grupos de igual frequ\u00eancia. O primeiro decil \u00e9 o ponto onde 10% de todos os valores dos dados ficam abaixo. O segundo decil \u00e9 o ponto onde 20% de todos os valores dos dados ficam abaixo, e assim por diante. Podemos usar [&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-1554","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 decis em Python: com exemplos<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular decis em Python, 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\/decis-em-python\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular decis em Python: com exemplos\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular decis em Python, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/decis-em-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T22:07:10+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\/decis-em-python\/\",\"url\":\"https:\/\/statorials.org\/pt\/decis-em-python\/\",\"name\":\"Como calcular decis em Python: com exemplos\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-25T22:07:10+00:00\",\"dateModified\":\"2023-07-25T22:07:10+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular decis em Python, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/decis-em-python\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/decis-em-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/decis-em-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular decis em python: 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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