{"id":1930,"date":"2023-07-24T10:08:46","date_gmt":"2023-07-24T10:08:46","guid":{"rendered":"https:\/\/statorials.org\/pt\/cdf-piton\/"},"modified":"2023-07-24T10:08:46","modified_gmt":"2023-07-24T10:08:46","slug":"cdf-piton","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/cdf-piton\/","title":{"rendered":"Como calcular e plotar um cdf em python"},"content":{"rendered":"

<\/p>\n

\n

Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para calcular a fun\u00e7\u00e3o de distribui\u00e7\u00e3o cumulativa (CDF) em Python:<\/span><\/p>\n

 #sortdata<\/span>\nx = np. sort<\/span> (data)\n\n#calculate CDF values\n<\/span>y = 1. * np. range<\/span> (len(data)) \/ (len(data) - 1)\n\n#plot CDF\n<\/span>plt. plot<\/span> (x, y)\n<\/strong><\/pre>\n
 Os exemplos a seguir mostram como usar essa sintaxe na pr\u00e1tica.<\/span><\/p>\n
 Exemplo 1: Distribui\u00e7\u00e3o Aleat\u00f3ria CDF<\/strong><\/span><\/h3>\n
 O c\u00f3digo a seguir mostra como calcular e tra\u00e7ar uma fun\u00e7\u00e3o de distribui\u00e7\u00e3o cumulativa (CDF) para uma amostra aleat\u00f3ria de dados em Python:<\/span> <\/p>\n
 import<\/span> numpy as<\/span> np\nimport<\/span> matplotlib. pyplot<\/span> as<\/span> plt\n\n<\/span>#define random sample of data\ndata = np. random<\/span> . rann<\/span> (10000)\n<\/span>\n#sortdata<\/span>\nx = np. sort<\/span> (data)\n\n#calculate CDF values\n<\/span>y = 1. * np. range<\/span> (len(data)) \/ (len(data) - 1)\n\n#plot CDF\n<\/span>plt. plot<\/span> (x, y)\nplt. xlabel<\/span> (' x<\/span> ')\n<\/strong><\/pre>\n
\"\"<\/p>\n
 O eixo x exibe os valores dos dados brutos e o eixo y exibe os valores CDF correspondentes.<\/span><\/p>\n
 Exemplo 2: Distribui\u00e7\u00e3o Normal CDF<\/strong><\/span><\/h3>\n
 Se quiser tra\u00e7ar a fun\u00e7\u00e3o de distribui\u00e7\u00e3o cumulativa de uma distribui\u00e7\u00e3o conhecida (como a distribui\u00e7\u00e3o normal<\/a> ), voc\u00ea pode usar as seguintes fun\u00e7\u00f5es da biblioteca SciPy<\/a> :<\/span> <\/p>\n
 import<\/span> numpy as<\/span> np\nimport<\/span> scipy\nimport<\/span> matplotlib. pyplot<\/span> as<\/span> plt<\/span>\n\n#generate data from normal distribution\n<\/span>data = np. random<\/span> . rann<\/span> (1000)\n\n#sortdata\n<\/span>x = np. sort<\/span> (data)\n\n#calculate CDF values\n<\/span>y = scipy. stats<\/span> . norm<\/span> . cdf<\/span> (x)\n\n#plot CDF\n<\/span>plt. plot<\/span> (data_sorted, norm_cdf)\n\n#plot CDF\n<\/span>plt. plot<\/span> (x, y)\nplt. xlabel<\/span> (' x<\/span> ')<\/span><\/span><\/strong> <\/pre>\n
\"\"<\/p>\n
 Recursos adicionais<\/strong><\/span><\/h3>\n
 CDF ou PDF: qual a diferen\u00e7a?<\/a>
 Como criar uma curva em forma de sino em Python<\/a>
 Como calcular pontua\u00e7\u00f5es Z em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Voc\u00ea pode usar a seguinte sintaxe b\u00e1sica para calcular a fun\u00e7\u00e3o de distribui\u00e7\u00e3o cumulativa (CDF) em Python: #sortdata x = np. sort (data) #calculate CDF values y = 1. * np. range (len(data)) \/ (len(data) – 1) #plot CDF plt. plot (x, y) Os exemplos a seguir mostram como usar essa sintaxe na pr\u00e1tica. Exemplo […]<\/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-1930","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"\nComo calcular e plotar um CDF em Python - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular e plotar um CDF 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\/cdf-piton\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como calcular e plotar um CDF em Python - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como calcular e plotar um CDF em Python, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/cdf-piton\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T10:08:46+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cdfpython1.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\/cdf-piton\/\",\"url\":\"https:\/\/statorials.org\/pt\/cdf-piton\/\",\"name\":\"Como calcular e plotar um CDF em Python - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-24T10:08:46+00:00\",\"dateModified\":\"2023-07-24T10:08:46+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como calcular e plotar um CDF em Python, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/cdf-piton\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/cdf-piton\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/cdf-piton\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como calcular e plotar um cdf 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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