{"id":2665,"date":"2023-07-21T06:40:15","date_gmt":"2023-07-21T06:40:15","guid":{"rendered":"https:\/\/statorials.org\/pt\/distancia-de-canberra-python\/"},"modified":"2023-07-21T06:40:15","modified_gmt":"2023-07-21T06:40:15","slug":"distancia-de-canberra-python","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/distancia-de-canberra-python\/","title":{"rendered":"Como calcular a dist\u00e2ncia de camberra em python (com exemplo)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">A <strong>dist\u00e2ncia de Canberra<\/strong> entre dois vetores A e B \u00e9 calculada da seguinte forma:<br \/><\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Dist\u00e2ncia de Camberra = \u03a3 |A <sub>i<\/sub> -B <sub>i<\/sub> | \/ (|A <sub>i<\/sub> | + |B <sub>i<\/sub> |)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>A <sub>i<\/sub><\/strong> : O i- <sup>\u00e9simo<\/sup> valor do vetor A<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>B <sub>i<\/sub><\/strong> : O i-\u00e9simo <sup>valor<\/sup> no vetor B<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Por exemplo, suponha que temos os dois vetores a seguir:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">UMA = [2, 4, 4, 6]<\/span><\/li>\n<li> <span style=\"color: #000000;\">B = [5, 5, 7, 8]<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Calcular\u00edamos a dist\u00e2ncia de Canberra entre A e B da seguinte forma:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Dist\u00e2ncia de Camberra = |2-5|\/(2+5) + |4-5|\/(4+5) + |4-7|\/(4+7) + |6-8|\/(6+8 ) )<\/span><\/li>\n<li> <span style=\"color: #000000;\">Dist\u00e2ncia de Camberra = 3\/7 + 1\/9 + 3\/11 + 2\/14<\/span><\/li>\n<li> <span style=\"color: #000000;\">Dist\u00e2ncia de Camberra = 0,95527<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">A dist\u00e2ncia de Canberra entre esses dois vetores \u00e9 <strong>0,95527<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como calcular a dist\u00e2ncia de Canberra entre esses dois vetores exatos em Python.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: Calcule a dist\u00e2ncia de Camberra em Python<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Primeiro, vamos criar um array NumPy para armazenar cada um dos nossos vetores:<\/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;\">#define two arrays\n<\/span>array1 = np. <span style=\"color: #3366ff;\">array<\/span> ([2, 4, 4, 6])\narray2 = np. <span style=\"color: #3366ff;\">array<\/span> ([5, 5, 7, 8])<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ent\u00e3o, podemos usar a fun\u00e7\u00e3o <strong>canberra()<\/strong> do pacote <strong>SciPy<\/strong> em Python para calcular a dist\u00e2ncia de Canberra entre os dois vetores:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">from<\/span> scipy. <span style=\"color: #3366ff;\">spatial<\/span> <span style=\"color: #008000;\">import<\/span> distance\n\n<span style=\"color: #008080;\">#calculate Canberra distance between the arrays\n<\/span>distance. <span style=\"color: #3366ff;\">canberra<\/span> (array1, array2)\n\n0.9552669552\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">A dist\u00e2ncia de Camberra entre os dois vetores \u00e9 <strong>0,95527<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Observe que este valor corresponde ao que calculamos manualmente anteriormente.<\/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>canberra()<\/strong> do pacote <strong>SciPy<\/strong> <a href=\"https:\/\/docs.scipy.org\/doc\/scipy\/reference\/generated\/scipy.spatial.distance.canberra.html\" target=\"_blank\" rel=\"noopener\">aqui<\/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 calcular outras m\u00e9tricas de dist\u00e2ncia comuns em Python:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/distancia-euclidiana-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular a dist\u00e2ncia euclidiana em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/manhattan-python-remoto\/\" target=\"_blank\" rel=\"noopener\">Como calcular a dist\u00e2ncia de Manhattan em Python<\/a><br \/><a href=\"https:\/\/statorials.org\/pt\/distancia-de-hammacao-do-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular a dist\u00e2ncia de Hamming em Python<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/mahalanobis-python-remoto\/\" target=\"_blank\" rel=\"noopener\">Como calcular a dist\u00e2ncia de Mahalanobis em Python<\/a><br \/><a href=\"https:\/\/statorials.org\/pt\/distancia-levenshtein-em-python\/\" target=\"_blank\" rel=\"noopener\">Como calcular a dist\u00e2ncia de Levenshtein em Python<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A dist\u00e2ncia de Canberra entre dois vetores A e B \u00e9 calculada da seguinte forma: Dist\u00e2ncia de Camberra = \u03a3 |A i -B i | \/ (|A i | + |B i |) Ouro: A i : O i- \u00e9simo valor do vetor A B i : O i-\u00e9simo valor no vetor B Por exemplo, [&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-2665","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 calcular a dist\u00e2ncia de Camberra em Python (com exemplo) - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como calcular a dist\u00e2ncia de Canberra entre dois vetores em Python, com um exemplo.\" \/>\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\/distancia-de-canberra-python\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" 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