{"id":1481,"date":"2023-07-26T05:27:40","date_gmt":"2023-07-26T05:27:40","guid":{"rendered":"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/"},"modified":"2023-07-26T05:27:40","modified_gmt":"2023-07-26T05:27:40","slug":"analise-univariada-em-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/","title":{"rendered":"Como realizar an\u00e1lise univariada em r (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">O termo <a href=\"https:\/\/statorials.org\/pt\/analise-univariada\/\" target=\"_blank\" rel=\"noopener\">an\u00e1lise univariada<\/a> refere-se \u00e0 an\u00e1lise de uma vari\u00e1vel. Voc\u00ea pode se lembrar disso porque o prefixo \u201cuni\u201d significa \u201cum\u201d.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Existem tr\u00eas maneiras comuns de realizar an\u00e1lise univariada em uma vari\u00e1vel:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>1. Estat\u00edsticas resumidas<\/strong> \u2013 Mede o centro e a distribui\u00e7\u00e3o dos valores.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>2. Tabela de Frequ\u00eancia<\/strong> \u2013 Descreve com que frequ\u00eancia aparecem valores diferentes.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>3. Gr\u00e1ficos<\/strong> \u2013 Utilizados para visualizar a distribui\u00e7\u00e3o de valores.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Este tutorial fornece um exemplo de como realizar an\u00e1lise univariada para a seguinte vari\u00e1vel:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create variable with 15 values<\/span>\nx &lt;- c(1, 1, 2, 3.5, 4, 4, 4, 5, 5, 6.5, 7, 7.4, 8, 13, 14.2)\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Estat\u00edsticas resumidas<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para calcular v\u00e1rias estat\u00edsticas resumidas para nossa vari\u00e1vel:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#find means<\/span>\nmean(x)\n[1] 5.706667\n\n<span style=\"color: #008080;\">#find median\n<\/span>median(x)\n\n[1] 5\n\n<span style=\"color: #008080;\">#find range<\/span>\nmax(x) - min(x)\n\n[1] 13.2\n\n<span style=\"color: #008080;\">#find interquartile range (spread of middle 50% of values)<\/span>\nIQR(x)\n\n[1] 3.45\n\n<span style=\"color: #008080;\">#find standard deviation<\/span>\nsd(x)\n\n[1] 3.858287<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Tabela de frequ\u00eancia<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para produzir uma tabela de frequ\u00eancia para nossa vari\u00e1vel:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#produce frequency table<\/span>\ntable(s)\n\n   1 2 3.5 4 5 6.5 7 7.4 8 13 14.2 \n   2 1 1 3 2 1 1 1 1 1 1 \n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Isso nos diz que:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">O valor <strong>1<\/strong> aparece duas vezes<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor <strong>2<\/strong> aparece 1 vez<\/span><\/li>\n<li> <span style=\"color: #000000;\">O valor <strong>3,5<\/strong> aparece 1 vez<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">E assim por diante.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Gr\u00e1ficos<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Podemos produzir um <a href=\"https:\/\/statorials.org\/pt\/bigodes-de-caixa\/\" target=\"_blank\" rel=\"noopener\">boxplot<\/a> usando a seguinte sintaxe:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#produce boxplot<\/span>\nboxplot(x)\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14678 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/unir1.png\" alt=\"\" width=\"441\" height=\"373\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Podemos produzir um histograma usando a seguinte sintaxe:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#produce histogram<\/span>\nhist(x)<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14679 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/unir2.png\" alt=\"\" width=\"396\" height=\"401\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Podemos produzir uma <a href=\"https:\/\/statorials.org\/pt\/curvas-de-densidade\/\" target=\"_blank\" rel=\"noopener\">curva de densidade<\/a> usando a seguinte sintaxe:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#produce density curve<\/span>\nplot(density(x))<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-14680 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/unir3.png\" alt=\"\" width=\"413\" height=\"402\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Cada um desses gr\u00e1ficos nos d\u00e1 uma maneira \u00fanica de visualizar a distribui\u00e7\u00e3o dos valores da nossa vari\u00e1vel.<\/span><\/p>\n<hr>\n<p> <span style=\"color: #000000;\">Voc\u00ea pode encontrar mais tutoriais de R <a href=\"https:\/\/statorials.org\/pt\/estatologia-explica-conceitos-de-forma-simples-e-direta-facilitamos-o-aprendizado-de-estatistica\/\" target=\"_blank\" rel=\"noopener\">nesta p\u00e1gina<\/a> .<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O termo an\u00e1lise univariada refere-se \u00e0 an\u00e1lise de uma vari\u00e1vel. Voc\u00ea pode se lembrar disso porque o prefixo \u201cuni\u201d significa \u201cum\u201d. Existem tr\u00eas maneiras comuns de realizar an\u00e1lise univariada em uma vari\u00e1vel: 1. Estat\u00edsticas resumidas \u2013 Mede o centro e a distribui\u00e7\u00e3o dos valores. 2. Tabela de Frequ\u00eancia \u2013 Descreve com que frequ\u00eancia aparecem valores [&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-1481","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 realizar an\u00e1lise univariada em R (com exemplos)<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como realizar an\u00e1lise univariada 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\/analise-univariada-em-r\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como realizar an\u00e1lise univariada em R (com exemplos)\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como realizar an\u00e1lise univariada em R, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T05:27:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/unir1.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=\"1 minuto\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/\",\"name\":\"Como realizar an\u00e1lise univariada em R (com exemplos)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-26T05:27:40+00:00\",\"dateModified\":\"2023-07-26T05:27:40+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como realizar an\u00e1lise univariada em R, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/analise-univariada-em-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como realizar an\u00e1lise univariada 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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