{"id":3598,"date":"2023-07-16T15:16:45","date_gmt":"2023-07-16T15:16:45","guid":{"rendered":"https:\/\/statorials.org\/pt\/padrao-python\/"},"modified":"2023-07-16T15:16:45","modified_gmt":"2023-07-16T15:16:45","slug":"padrao-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/padrao-python\/","title":{"rendered":"Como usar o equivalente a rnorm() em python"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Na linguagem de programa\u00e7\u00e3o R, podemos usar a fun\u00e7\u00e3o <strong>rnorm()<\/strong> para gerar um vetor de valores aleat\u00f3rios que segue uma <a href=\"https:\/\/statorials.org\/pt\/exemplo-de-distribuicao-normal\/\" target=\"_blank\" rel=\"noopener\">distribui\u00e7\u00e3o normal<\/a> com m\u00e9dia e desvio padr\u00e3o espec\u00edficos.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo, o c\u00f3digo a seguir mostra como usar <strong>rnorm()<\/strong> para criar um vetor de 8 valores aleat\u00f3rios que segue uma distribui\u00e7\u00e3o normal com m\u00e9dia 5 e desvio padr\u00e3o 2:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#make this example reproducible\n<\/span>set. <span style=\"color: #3366ff;\">seeds<\/span> (1)\n\n<span style=\"color: #008080;\">#generate vector of 8 values that follows normal distribution with mean=5 and sd=2\n<\/span>rnorm(n=8, mean=5, sd=2)\n\n[1] 3.747092 5.367287 3.328743 8.190562 5.659016 3.359063 5.974858 6.476649\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">O equivalente \u00e0 fun\u00e7\u00e3o <strong>rnorm()<\/strong> em Python \u00e9 a fun\u00e7\u00e3o <strong>np.random.normal()<\/strong> , que usa a seguinte sintaxe b\u00e1sica:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>np.random.normal(loc=0, escala=1, tamanho=Nenhum)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>loc<\/strong> : M\u00e9dia da distribui\u00e7\u00e3o<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>escala<\/strong> : Desvio padr\u00e3o da distribui\u00e7\u00e3o<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>tamanho<\/strong> : tamanho da amostra<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar esta fun\u00e7\u00e3o na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo: usando o equivalente a rnorm() em Python<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como usar a fun\u00e7\u00e3o <strong>np.random.normal()<\/strong> para gerar uma matriz de valores aleat\u00f3rios que segue uma distribui\u00e7\u00e3o normal com uma m\u00e9dia e desvio padr\u00e3o espec\u00edficos.<\/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\n<span style=\"color: #008080;\">#make this example reproducible<\/span>\nn.p. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">seeds<\/span> (1)\n\n<span style=\"color: #008080;\">#generate array of 8 values that follow normal distribution with mean=5 and sd=2<\/span>\n<span style=\"color: #008080;\"><span style=\"color: #000000;\">n.p. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=5, scale=2, size=8)\n\narray([8.24869073, 3.77648717, 3.9436565, 2.85406276, 6.73081526,\n       0.39692261, 8.48962353, 3.4775862 ])\n<\/span><\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">O resultado \u00e9 um array NumPy contendo 8 valores gerados a partir de uma distribui\u00e7\u00e3o normal com m\u00e9dia 5 e desvio padr\u00e3o 2.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Voc\u00ea tamb\u00e9m pode criar um histograma usando Matplotlib para visualizar uma distribui\u00e7\u00e3o normal gerada pela fun\u00e7\u00e3o <strong>np.random.normal()<\/strong> :<\/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<span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n\n<span style=\"color: #008080;\">#make this example reproducible<\/span>\nn.p. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">seeds<\/span> (1)\n\n<span style=\"color: #008080;\">#generate array of 200 values that follows normal distribution with mean=5 and sd=2<\/span>\n<span style=\"color: #008080;\"><span style=\"color: #000000;\">data = np. <span style=\"color: #3366ff;\">random<\/span> . <span style=\"color: #3366ff;\">normal<\/span> (loc=5, scale=2, size=200)\n\n<span style=\"color: #008080;\">#create histogram to visualize distribution of values<\/span>\nplt. <span style=\"color: #3366ff;\">hist<\/span> (data, bins=30, edgecolor=' <span style=\"color: #ff0000;\">black<\/span> ')\n<\/span><\/span><\/strong><\/pre>\n<p> <strong><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29661 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/normal1.jpg\" alt=\"\" width=\"497\" height=\"376\" srcset=\"\" sizes=\"auto, \"><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Vemos que a distribui\u00e7\u00e3o dos valores tem aproximadamente a forma de um sino, com m\u00e9dia de 5 e desvio padr\u00e3o de 2.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o <strong>np.random.normal()<\/strong> <a href=\"https:\/\/numpy.org\/doc\/stable\/reference\/random\/generated\/numpy.random.normal.html?highlight=random\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras opera\u00e7\u00f5es comuns em Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/cdf-normal-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular e plotar CDF normal em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/tracar-distribuicao-normal-python\/\" target=\"_blank\" rel=\"noopener\">Como tra\u00e7ar uma distribui\u00e7\u00e3o normal em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/teste-de-normalidade-python\/\" target=\"_blank\" rel=\"noopener\">Como testar a normalidade em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Na linguagem de programa\u00e7\u00e3o R, podemos usar a fun\u00e7\u00e3o rnorm() para gerar um vetor de valores aleat\u00f3rios que segue uma distribui\u00e7\u00e3o normal com m\u00e9dia e desvio padr\u00e3o espec\u00edficos. Por exemplo, o c\u00f3digo a seguir mostra como usar rnorm() para criar um vetor de 8 valores aleat\u00f3rios que segue uma distribui\u00e7\u00e3o normal com m\u00e9dia 5 e [&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-3598","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 o equivalente a rnorm() em Python \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como usar o equivalente da fun\u00e7\u00e3o rnorm() 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\/padrao-python\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como usar o equivalente a rnorm() em Python \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como usar o equivalente da fun\u00e7\u00e3o rnorm() em Python, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/padrao-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-16T15:16:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/normal1.jpg\" \/>\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\/padrao-python\/\",\"url\":\"https:\/\/statorials.org\/pt\/padrao-python\/\",\"name\":\"Como usar o equivalente a rnorm() em Python \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-16T15:16:45+00:00\",\"dateModified\":\"2023-07-16T15:16:45+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como usar o equivalente da fun\u00e7\u00e3o rnorm() em Python, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/padrao-python\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/padrao-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/padrao-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como usar o equivalente a rnorm() 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. 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