{"id":2494,"date":"2023-07-22T00:58:03","date_gmt":"2023-07-22T00:58:03","guid":{"rendered":"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/"},"modified":"2023-07-22T00:58:03","modified_gmt":"2023-07-22T00:58:03","slug":"mesa-de-adereco-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/","title":{"rendered":"Como usar a fun\u00e7\u00e3o prop.table() em r (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">A fun\u00e7\u00e3o <strong>prop.table()<\/strong> em R pode ser usada para calcular o valor de cada c\u00e9lula em uma tabela em propor\u00e7\u00e3o a todos os valores.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Esta fun\u00e7\u00e3o usa a seguinte sintaxe b\u00e1sica:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>prop. <span style=\"color: #3366ff;\">table<\/span> (x, margin = <span style=\"color: #008000;\">NULL<\/span> )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> : Nome da tabela<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>margin<\/strong> : A margem pela qual dividir (1 = linha, 2 = coluna, o padr\u00e3o \u00e9 NULL)<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar esta fun\u00e7\u00e3o na pr\u00e1tica com a seguinte matriz em R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create matrix\n<\/span>x &lt;- matrix(1:6, nrow= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#view matrix\n<\/span>x\n\n     [,1] [,2] [,3]\n[1,] 1 3 5\n[2,] 2 4 6\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: Use prop.table com margin = NULL<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como usar <strong>prop.table()<\/strong> sem especificar uma margem para dividir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">prop. <span style=\"color: #3366ff;\">table<\/span> (x)\n\n           [,1] [,2] [,3]\n[1,] 0.04761905 0.1428571 0.2380952\n[2,] 0.09523810 0.1904762 0.2857143<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A soma de todos os valores da tabela original \u00e9: 1 + 3 + 5 + 2 + 4 + 6 = 21.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A fun\u00e7\u00e3o <strong>prop.table()<\/strong> exibe cada valor individual em propor\u00e7\u00e3o ao todo.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 1] = 1\/21 = <strong>0,0476<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 2] = 3\/21 = <strong>0,1428<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 3] = 5\/21 = <strong>0,2380<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 1] = 2\/21 = <strong>0,0952<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 2] = 4\/21 = <strong>0,1904<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [3, 2] = 6\/21 = <strong>0,2857<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Observe que todos os valores na sa\u00edda <strong>prop.table()<\/strong> somam 1.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: Use prop.table com margem = 1<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como usar <strong>prop.table()<\/strong> com <strong>margin=1<\/strong> , que divide cada valor individual pelas somas das linhas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">prop. <span style=\"color: #3366ff;\">table<\/span> (x, margin = <span style=\"color: #008000;\">1<\/span> )\n\n          [,1] [,2] [,3]\n[1,] 0.1111111 0.3333333 0.5555556\n[2,] 0.1666667 0.3333333 0.5000000<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A soma de todos os valores da primeira linha da tabela original \u00e9: 1 + 3 + 5 = 9.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A soma de todos os valores da segunda linha da tabela original \u00e9: 2 + 4 + 6 = 12.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Portanto, a sa\u00edda exibe cada valor individual proporcionalmente \u00e0 soma das linhas.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 1] = 1\/9 = <strong>0,1111<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 2] = 3\/9 = <strong>0,3333<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 3] = 5\/9 = <strong>0,5555<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 1] = 2\/12 = <strong>0,1667<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 2] = 4\/12 = <strong>0,3333<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [3, 2] = 6\/12 = <strong>0,5000<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Observe que os valores em cada linha da sa\u00edda <strong>prop.table()<\/strong> somam 1.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 3: Use prop.table com margem = 2<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como usar <strong>prop.table()<\/strong> com <strong>margin=2<\/strong> , que divide cada valor individual pelas somas das colunas:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">prop. <span style=\"color: #3366ff;\">table<\/span> (x, margin = <span style=\"color: #008000;\">2<\/span> )\n\n          [,1] [,2] [,3]\n[1,] 0.3333333 0.4285714 0.4545455\n[2,] 0.6666667 0.5714286 0.5454545<\/span>\n<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A soma dos valores da primeira coluna da tabela original \u00e9: 1 + 2 = 3.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A soma dos valores da segunda coluna da tabela original \u00e9: 3 + 4 = 7.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A soma dos valores da terceira coluna da tabela original \u00e9: 5 + 6 = 11.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Portanto, a sa\u00edda exibe cada valor individual proporcionalmente \u00e0 soma da coluna.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 1] = 1\/3 = <strong>0,3333<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 1] = 2\/3 = <strong>0,6667<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 2] = 3\/7 = <strong>0,4285<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [2, 2] = 4\/7 = <strong>0,5714<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [1, 3] = 5\/11 = <strong>0,4545<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">C\u00e9lula [3, 3] = 6\/11 = <strong>0,5454<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Observe que os valores em cada coluna da sa\u00edda <strong>prop.table()<\/strong> somam 1.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras opera\u00e7\u00f5es comuns em R:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/tabela-de-frequencia-em-r\/\" target=\"_blank\" rel=\"noopener\">Como criar tabelas de frequ\u00eancia em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/tabela-de-frequencia-relativa-em-r\/\" target=\"_blank\" rel=\"noopener\">Como criar tabelas de frequ\u00eancia relativa em R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/tabela-de-contingencia-em-r\/\" target=\"_blank\" rel=\"noopener\">Como criar uma tabela de conting\u00eancia em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A fun\u00e7\u00e3o prop.table() em R pode ser usada para calcular o valor de cada c\u00e9lula em uma tabela em propor\u00e7\u00e3o a todos os valores. Esta fun\u00e7\u00e3o usa a seguinte sintaxe b\u00e1sica: prop. table (x, margin = NULL ) Ouro: x : Nome da tabela margin : A margem pela qual dividir (1 = linha, 2 [&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-2494","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 usar a fun\u00e7\u00e3o prop.table() em R (com exemplos) \u2013 Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como usar a fun\u00e7\u00e3o prop.table() 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\/mesa-de-adereco-r\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como usar a fun\u00e7\u00e3o prop.table() em R (com exemplos) \u2013 Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como usar a fun\u00e7\u00e3o prop.table() em R, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T00:58:03+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\/mesa-de-adereco-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/\",\"name\":\"Como usar a fun\u00e7\u00e3o prop.table() em R (com exemplos) \u2013 Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-22T00:58:03+00:00\",\"dateModified\":\"2023-07-22T00:58:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como usar a fun\u00e7\u00e3o prop.table() em R, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/mesa-de-adereco-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como usar a fun\u00e7\u00e3o prop.table() 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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