{"id":865,"date":"2023-07-28T12:05:41","date_gmt":"2023-07-28T12:05:41","guid":{"rendered":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/"},"modified":"2023-07-28T12:05:41","modified_gmt":"2023-07-28T12:05:41","slug":"tracar-intervalo-de-confianca-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/","title":{"rendered":"Como tra\u00e7ar um intervalo de confian\u00e7a em python"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Um <strong>intervalo de confian\u00e7a<\/strong> \u00e9 um intervalo de valores que provavelmente cont\u00e9m um par\u00e2metro populacional com um certo n\u00edvel de confian\u00e7a.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Este tutorial explica como tra\u00e7ar um intervalo de confian\u00e7a para um conjunto de dados em Python usando a <a href=\"https:\/\/seaborn.pydata.org\/index.html\" target=\"_blank\" rel=\"noopener\">biblioteca de visualiza\u00e7\u00e3o Seaborn<\/a> .<\/span><\/p>\n<h3> <strong><span style=\"color: #000000;\">Tra\u00e7ando intervalos de confian\u00e7a usando lineplot()<\/span><\/strong><\/h3>\n<p> <span style=\"color: #000000;\">A primeira maneira de tra\u00e7ar um intervalo de confian\u00e7a \u00e9 usar a<a href=\"https:\/\/seaborn.pydata.org\/generated\/seaborn.lineplot.html\" target=\"_blank\" rel=\"noopener\">fun\u00e7\u00e3o lineplot()<\/a> , que conecta todos os pontos de dados em um conjunto de dados com uma linha e exibe uma faixa de confian\u00e7a em torno de cada ponto:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> numpy <span style=\"color: #107d3f;\">as<\/span> np\n<span style=\"color: #107d3f;\">import<\/span> seaborn <span style=\"color: #107d3f;\">as<\/span> sns\n<span style=\"color: #107d3f;\">import<\/span> matplotlib.pyplot <span style=\"color: #107d3f;\">as<\/span> plt\n<span style=\"color: #008080;\">\n#create some random data<\/span>\nnp.random.seed(0)\nx = np.random.randint(1, 10, 30)\ny = x+np.random.normal(0, 1, 30)\n\n<span style=\"color: #008080;\">#create lineplot<\/span>\nax = sns.lineplot(x, y)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9400 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython1.png\" alt=\"Gr\u00e1fico de intervalo de confian\u00e7a em Python\" width=\"401\" height=\"279\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Por padr\u00e3o, a fun\u00e7\u00e3o lineplot() usa um intervalo de confian\u00e7a de 95%, mas pode especificar o n\u00edvel de confian\u00e7a a ser usado com o comando <strong>ci<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Quanto menor for o n\u00edvel de confian\u00e7a, mais estreito ser\u00e1 o intervalo de confian\u00e7a em torno da linha. Por exemplo, \u00e9 assim que se parece um intervalo de confian\u00e7a de 80% para exatamente o mesmo conjunto de dados:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create lineplot\n<\/span>ax = sns.lineplot(x, y, ci= <span style=\"color: #008000;\">80<\/span> )\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"wp-image-9401 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython2.png\" alt=\"Intervalo de confian\u00e7a em Python usando Seaborn\" width=\"401\" height=\"269\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <strong><span style=\"color: #000000;\">Tra\u00e7ando intervalos de confian\u00e7a usando regplot()<\/span><\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Voc\u00ea tamb\u00e9m pode tra\u00e7ar intervalos de confian\u00e7a usando a <a href=\"https:\/\/seaborn.pydata.org\/generated\/seaborn.regplot.html\" target=\"_blank\" rel=\"noopener\">fun\u00e7\u00e3o regplot()<\/a> , que exibe um gr\u00e1fico de dispers\u00e3o de um conjunto de dados com faixas de confian\u00e7a ao redor da linha de regress\u00e3o estimada:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #107d3f;\">import<\/span> numpy <span style=\"color: #107d3f;\">as<\/span> np\n<span style=\"color: #107d3f;\">import<\/span> seaborn <span style=\"color: #107d3f;\">as<\/span> sns\n<span style=\"color: #107d3f;\">import<\/span> matplotlib.pyplot <span style=\"color: #107d3f;\">as<\/span> plt\n<span style=\"color: #008080;\">\n#create some random data<\/span>\nnp.random.seed(0)\nx = np.random.randint(1, 10, 30)\ny = x+np.random.normal(0, 1, 30)\n\n<span style=\"color: #008080;\">#create regplot<\/span>\nax = sns.regplot(x, y)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9402 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython3.png\" alt=\"Gr\u00e1fico de dispers\u00e3o com intervalo de confian\u00e7a em Python\" width=\"399\" height=\"268\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Semelhante ao lineplot(), a fun\u00e7\u00e3o regplot() tem como padr\u00e3o um intervalo de confian\u00e7a de 95%, mas pode especificar o n\u00edvel de confian\u00e7a a ser usado com o comando <strong>ci<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Novamente, quanto menor o n\u00edvel de confian\u00e7a, mais estreito ser\u00e1 o intervalo de confian\u00e7a em torno da linha de regress\u00e3o. Por exemplo, \u00e9 assim que se parece um intervalo de confian\u00e7a de 80% para exatamente o mesmo conjunto de dados:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create regplot<\/span>\nax = sns.regplot(x, y, ci= <span style=\"color: #008000;\">80<\/span> )\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-9403 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython4.png\" alt=\"Tra\u00e7ando intervalo de confian\u00e7a em Python\" width=\"399\" height=\"264\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pt\/intervalos-de-confianca\/\">O que s\u00e3o intervalos de confian\u00e7a?<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/intervalos-de-confianca-python\/\">Como calcular intervalos de confian\u00e7a em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um intervalo de confian\u00e7a \u00e9 um intervalo de valores que provavelmente cont\u00e9m um par\u00e2metro populacional com um certo n\u00edvel de confian\u00e7a. Este tutorial explica como tra\u00e7ar um intervalo de confian\u00e7a para um conjunto de dados em Python usando a biblioteca de visualiza\u00e7\u00e3o Seaborn . Tra\u00e7ando intervalos de confian\u00e7a usando lineplot() A primeira maneira de tra\u00e7ar [&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-865","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 tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia<\/title>\n<meta name=\"description\" content=\"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.\" \/>\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\/tracar-intervalo-de-confianca-python\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T12:05:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython1.png\" \/>\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\/tracar-intervalo-de-confianca-python\/\",\"url\":\"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/\",\"name\":\"Como tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-28T12:05:41+00:00\",\"dateModified\":\"2023-07-28T12:05:41+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como tra\u00e7ar um intervalo de confian\u00e7a em python\"}]},{\"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais\",\"sameAs\":[\"https:\/\/statorials.org\/pt\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Como tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia","description":"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/","og_locale":"pt_PT","og_type":"article","og_title":"Como tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia","og_description":"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.","og_url":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/","og_site_name":"Statorials","article_published_time":"2023-07-28T12:05:41+00:00","og_image":[{"url":"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/plotcipython1.png"}],"author":"Dr. benjamim anderson","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Dr. benjamim anderson","Tempo estimado de leitura":"2 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/","url":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/","name":"Como tra\u00e7ar um intervalo de confian\u00e7a em Python - Estatologia","isPartOf":{"@id":"https:\/\/statorials.org\/pt\/#website"},"datePublished":"2023-07-28T12:05:41+00:00","dateModified":"2023-07-28T12:05:41+00:00","author":{"@id":"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666"},"description":"Uma explica\u00e7\u00e3o simples sobre como tra\u00e7ar um intervalo de confian\u00e7a em Python.","breadcrumb":{"@id":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/#breadcrumb"},"inLanguage":"pt-PT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pt\/tracar-intervalo-de-confianca-python\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Lar","item":"https:\/\/statorials.org\/pt\/"},{"@type":"ListItem","position":2,"name":"Como tra\u00e7ar um intervalo de confian\u00e7a em python"}]},{"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais","sameAs":["https:\/\/statorials.org\/pt"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/comments?post=865"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/865\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/media?parent=865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/categories?post=865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/tags?post=865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}