{"id":687,"date":"2023-07-29T02:19:30","date_gmt":"2023-07-29T02:19:30","guid":{"rendered":"https:\/\/statorials.org\/pt\/calculadora-de-cartao\/"},"modified":"2023-07-29T02:19:30","modified_gmt":"2023-07-29T02:19:30","slug":"calculadora-de-cartao","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/calculadora-de-cartao\/","title":{"rendered":"Calculadora mape"},"content":{"rendered":"<p><script src=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/mathjs\/5.1.1\/math.js\"><\/script><script src=\"https:\/\/cdn.jsdelivr.net\/npm\/jstat@latest\/dist\/jstat.min.js\"><\/script><\/p>\n<style>\n@import url('https:\/\/fonts.googleapis.com\/css?family=Droid+Serif|Raleway');<\/p>\n<p>h1 {\ntext-align: center;\nfont-size: 50px;\nmargin-bottom: 0px;\nfont-family: 'Raleway', serif;\n}<\/p>\n<p>p {\ncolor: black;\ntext-align: center;\nmargin-bottom: 15px;\nmargin-top: 15px;\nfont-family: 'Raleway', sans-serif;\n}<\/p>\n<p>#words {\npadding-left: 30px;\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_summary {\npadding-left: 70px;\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_text {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#words_text_area {\ndisplay:inline-block;\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\npadding-left: 100px;\n}<\/p>\n<p>#calcTitle {\ntext-align: center;\nfont-size: 20px;\nmargin-bottom: 0px;\nfont-family: 'Raleway', serif;\n}<\/p>\n<p>#hr_top {\nwidth: 30%;\nmargin-bottom: 0px;\nborder: none;\nheight: 2px;\ncolor: black;\nbackground-color: black;\n}<\/p>\n<p>#hr_bottom {\nwidth: 30%;\nmargin-top: 15px;\nborder: none;\nheight: 2px;\ncolor: black;\nbackground-color: black;\n}<\/p>\n<p>#words label, input {\n    display: inline-block;\n    vertical-align: baseline;\n    width: 350px;\n}<\/p>\n<p>    #button {\n      border: 1px solid;\n      border-radius: 10px;\n      margin-top: 20px;<\/p>\n<p>      cursor: pointer;\n      outline: none;\n      background-color: white;\n      color: black;\n      font-family: 'Work Sans', sans-serif;\n      border: 1px solid grey;\n      \/* Green *\/\n    }<\/p>\n<p>    #button:hover {\n      background-color: #f6f6f6;\n      border: 1px solid black;\n    }<\/p>\n<p>\t#words_table {\ncolor: black;\nfont-family: Raleway;\nmax-width: 350px;\nmargin: 25px auto;\nline-height: 1.75;\n}<\/p>\n<p>#summary_table {\ncolor: black;\nfont-family: Raleway;\nmax-width: 550px;\nmargin: 25px auto;\nline-height: 1.75;\npadding-left: 20px;\n}<\/p>\n<p>\t.label_radio {\n\ttext-align: center;\n    }<\/p>\n<p>td, tr, th {\n    border: 1px solid black;\n}\ntable {\n    border-collapse: collapse;\n}\ntd, th {\n    min-width: 50px;\n    height: 21px;\n}\n    .label_radio {\n\ttext-align: center;\n}<\/p>\n<p>#text_area_input {\n\tpadding-left: 35%;\n\tfloat: left;\n}<\/p>\n<p>svg:not(:root) {\n  overflow: visible;\n}<\/p>\n<\/style>\n<div id=\"words\">\n<p style=\"text-align: left\"><b>O erro percentual m\u00e9dio absoluto (MAPE)<\/b> \u00e9 uma m\u00e9trica que nos diz a que dist\u00e2ncia nossos valores previstos est\u00e3o dos valores observados em uma an\u00e1lise de regress\u00e3o, em m\u00e9dia. \u00c9 calculado da seguinte forma:<\/p>\n<p style=\"text-align: left\"> <b>MAPE<\/b> = (1\/n) * \u03a3(|O <sub>i<\/sub> \u2013 P <sub>i<\/sub> |\/O <sub>i<\/sub> * 100<\/p>\n<p style=\"text-align: left\"> Ouro:<\/p>\n<ul>\n<li> \u03a3 \u00e9 um s\u00edmbolo sofisticado que significa \u201csoma\u201d<\/li>\n<li> <sub>Pi<\/sub> \u00e9 o valor previsto para a <sup>i-\u00e9sima<\/sup> observa\u00e7\u00e3o<\/li>\n<li> O <sub>i<\/sub> \u00e9 o valor observado para a <sup>i-\u00e9sima<\/sup> observa\u00e7\u00e3o<\/li>\n<li> n \u00e9 o tamanho da amostra<\/li>\n<\/ul>\n<p style=\"text-align: left\"> Para encontrar o MAPE para uma regress\u00e3o, basta inserir uma lista de valores observados e valores previstos nas duas caixas abaixo e clicar no bot\u00e3o \u201cCalcular\u201d:<\/p>\n<\/div>\n<p style=\"text-align: center\"> <b>Valores observados:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"input_data_obs\" name=\"x\" rows=\"5\" cols=\"40\"> 34, 37, 44, 47, 48, 48, 46, 43, 32, 27, 26, 24<\/textarea><\/div>\n<p style=\"text-align: center\"> <b>Valores previstos:<\/b><\/p>\n<div id=\"words_table\"><textarea id=\"input_data_pred\" name=\"x\" rows=\"5\" cols=\"40\"> 37, 40, 46, 44, 46, 50, 45, 44, 34, 30, 22, 23 <\/textarea><\/div>\n<div id=\"words_table\"><input type=\"button\" id=\"button\" onclick=\"calc()\" value=\"Calculate\"><\/div>\n<div id=\"words_table\">\n<p style=\"text-align: center\"> <b>MAPE = <span id=\"RMSE\">2,43242<\/span> %<\/b><\/p>\n<\/div>\n<div id=\"words_table\">\n<p style=\"text-align: center\"><span id=\"error_msg\"><\/span><\/p>\n<\/div>\n<p><script><\/p>\n<p>function calc() {<\/p>\n<p>var obs = document.getElementById('input_data_obs').value.split(',').map(Number);<\/p>\n<p>var pred = document.getElementById('input_data_pred').value.split(',').map(Number);<\/p>\n<p>\/\/check that both lists are equal length\nif (obs.length - pred.length == 0) {\ndocument.getElementById('error_msg').innerHTML = '';\n\/\/calculate RMSE\nlet error = 0\n\tfor (let i = 0; i < obs.length; i++) {\n\t\terror += Math.abs(obs[i] - pred[i]) \/ obs[i]\n\t}\n\nvar RMSE = error \/ obs.length * 100;\ndocument.getElementById('RMSE').innerHTML = RMSE.toFixed(5);\n}\n\nelse {\n document.getElementById('RMSE').innerHTML = '';\n document.getElementById('error_msg').innerHTML = 'The two lists must be of equal length.';\n}\n\t  \n} \/\/end calc function\n<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O erro percentual m\u00e9dio absoluto (MAPE) \u00e9 uma m\u00e9trica que nos diz a que dist\u00e2ncia nossos valores previstos est\u00e3o dos valores observados em uma an\u00e1lise de regress\u00e3o, em m\u00e9dia. \u00c9 calculado da seguinte forma: MAPE = (1\/n) * \u03a3(|O i \u2013 P i |\/O i * 100 Ouro: \u03a3 \u00e9 um s\u00edmbolo sofisticado que significa [&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-687","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>Calculadora MAPE - Estatoriais<\/title>\n<meta name=\"description\" content=\"Esta calculadora encontra o MAPE para uma lista de valores observados e previstos.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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