{"id":2460,"date":"2023-07-22T04:21:41","date_gmt":"2023-07-22T04:21:41","guid":{"rendered":"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/"},"modified":"2023-07-22T04:21:41","modified_gmt":"2023-07-22T04:21:41","slug":"distribuicao-gama-em-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/","title":{"rendered":"Como tra\u00e7ar uma distribui\u00e7\u00e3o gama em python (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Nas estat\u00edsticas, a <strong>distribui\u00e7\u00e3o Gama<\/strong> \u00e9 frequentemente usada para modelar probabilidades relacionadas aos tempos de espera.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar a fun\u00e7\u00e3o <a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.stats.gamma.html\" target=\"_blank\" rel=\"noopener\">scipy.stats.gamma()<\/a> para tra\u00e7ar uma ou mais distribui\u00e7\u00f5es Gamma em Python.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: tra\u00e7ando uma distribui\u00e7\u00e3o gama<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como tra\u00e7ar uma distribui\u00e7\u00e3o Gamma com um par\u00e2metro de forma <strong>5<\/strong> e um par\u00e2metro de escala <strong>3<\/strong> em Python:<\/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> scipy. <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">as<\/span> stats \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;\">#define x-axis values\n<\/span>x = np. <span style=\"color: #3366ff;\">linspace<\/span> (0, 40, 100) \n\n<span style=\"color: #008080;\">#calculate pdf of Gamma distribution for each x-value\n<\/span>y = stats. <span style=\"color: #3366ff;\">gamma<\/span> . <span style=\"color: #3366ff;\">pdf<\/span> (x, a= <span style=\"color: #008000;\">5<\/span> , scale= <span style=\"color: #008000;\">3<\/span> )\n\n<span style=\"color: #008080;\">#create plot of Gamma distribution\n<\/span>plt. <span style=\"color: #3366ff;\">plot<\/span> (x, y)\n\n<span style=\"color: #008080;\">#displayplot\n<\/span>plt. <span style=\"color: #3366ff;\">show<\/span> ()\n<\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-22053 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/gammapython1.png\" alt=\"\" width=\"531\" height=\"348\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">O eixo x exibe os valores potenciais que uma vari\u00e1vel aleat\u00f3ria distribu\u00edda gama pode assumir e o eixo y exibe os valores PDF correspondentes da distribui\u00e7\u00e3o gama com um par\u00e2metro de forma de 5 e um par\u00e2metro de escala de 3.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: tra\u00e7ando m\u00faltiplas distribui\u00e7\u00f5es gama<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como plotar m\u00faltiplas distribui\u00e7\u00f5es Gamma com diferentes par\u00e2metros de forma e escala:<\/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> scipy. <span style=\"color: #3366ff;\">stats<\/span> <span style=\"color: #008000;\">as<\/span> stats \n<span style=\"color: #008000;\">import<\/span> matplotlib. <span style=\"color: #3366ff;\">pyplot<\/span> <span style=\"color: #008000;\">as<\/span> plt\n<span style=\"color: #008080;\">\n#define three Gamma distributions\n<\/span>x = np. <span style=\"color: #3366ff;\">linspace<\/span> (0, 40, 100)\ny1 = stats. <span style=\"color: #3366ff;\">gamma<\/span> . <span style=\"color: #3366ff;\">pdf<\/span> (x, a= <span style=\"color: #008000;\">5<\/span> , scale= <span style=\"color: #008000;\">3<\/span> )\ny2 = stats. <span style=\"color: #3366ff;\">gamma<\/span> . <span style=\"color: #3366ff;\">pdf<\/span> (x, a= <span style=\"color: #008000;\">2<\/span> , scale= <span style=\"color: #008000;\">5<\/span> )\ny3 = stats. <span style=\"color: #3366ff;\">gamma<\/span> . <span style=\"color: #3366ff;\">pdf<\/span> (x, a= <span style=\"color: #008000;\">4<\/span> , scale= <span style=\"color: #008000;\">2<\/span> )\n\n<span style=\"color: #008080;\">#add lines for each distribution\n<\/span>plt. <span style=\"color: #3366ff;\">plot<\/span> (x, y1, label= <span style=\"color: #ff0000;\">shape=5, scale=3<\/span> ')\nplt. <span style=\"color: #3366ff;\">plot<\/span> (x, y2, label=' <span style=\"color: #ff0000;\">shape=2, scale=5<\/span> ')\nplt. <span style=\"color: #3366ff;\">plot<\/span> (x, y3, label=' <span style=\"color: #ff0000;\">shape=4, scale=2<\/span> ')\n\n<span style=\"color: #008080;\">#add legend\n<\/span>plt. <span style=\"color: #3366ff;\">legend<\/span> ()\n\n<span style=\"color: #008080;\">#displayplot\n<\/span>plt. <span style=\"color: #3366ff;\">show<\/span> ()<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-22054 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/gammapython2-1.png\" alt=\"Distribui\u00e7\u00e3o gama em Python\" width=\"538\" height=\"347\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Observe que o formato da distribui\u00e7\u00e3o Gama pode variar significativamente dependendo dos par\u00e2metros de formato e escala.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong> <a href=\"https:\/\/statorials.org\/pt\/plotar-multiplas-linhas-matplotlib\/\" target=\"_blank\" rel=\"noopener\">Como plotar m\u00faltiplas linhas no Matplotlib<\/a><\/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 plotar outras distribui\u00e7\u00f5es comuns em Python:<\/span><\/p>\n<p> <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\/tracar-distribuicao-qui-quadrado-em-python\/\" target=\"_blank\" rel=\"noopener\">Como tra\u00e7ar uma distribui\u00e7\u00e3o qui-quadrado em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nas estat\u00edsticas, a distribui\u00e7\u00e3o Gama \u00e9 frequentemente usada para modelar probabilidades relacionadas aos tempos de espera. Os exemplos a seguir mostram como usar a fun\u00e7\u00e3o scipy.stats.gamma() para tra\u00e7ar uma ou mais distribui\u00e7\u00f5es Gamma em Python. Exemplo 1: tra\u00e7ando uma distribui\u00e7\u00e3o gama O c\u00f3digo a seguir mostra como tra\u00e7ar uma distribui\u00e7\u00e3o Gamma com um par\u00e2metro de [&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-2460","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 uma distribui\u00e7\u00e3o gama em Python (com exemplos) - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como tra\u00e7ar uma distribui\u00e7\u00e3o Gamma 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\/distribuicao-gama-em-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 uma distribui\u00e7\u00e3o gama em Python (com exemplos) - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como tra\u00e7ar uma distribui\u00e7\u00e3o Gamma em Python, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T04:21:41+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/gammapython1.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\/distribuicao-gama-em-python\/\",\"url\":\"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/\",\"name\":\"Como tra\u00e7ar uma distribui\u00e7\u00e3o gama em Python (com exemplos) - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-22T04:21:41+00:00\",\"dateModified\":\"2023-07-22T04:21:41+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como tra\u00e7ar uma distribui\u00e7\u00e3o Gamma em Python, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/distribuicao-gama-em-python\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como tra\u00e7ar uma distribui\u00e7\u00e3o gama em python (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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