{"id":721,"date":"2023-07-28T23:42:23","date_gmt":"2023-07-28T23:42:23","guid":{"rendered":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/"},"modified":"2023-07-28T23:42:23","modified_gmt":"2023-07-28T23:42:23","slug":"regressao-logistica-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/","title":{"rendered":"Como realizar regress\u00e3o log\u00edstica no excel"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\"><strong>A regress\u00e3o log\u00edstica<\/strong> \u00e9 um m\u00e9todo que usamos para ajustar um modelo de regress\u00e3o quando a vari\u00e1vel de resposta \u00e9 bin\u00e1ria.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Este tutorial explica como realizar regress\u00e3o log\u00edstica no Excel.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo: regress\u00e3o log\u00edstica no Excel<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Use as etapas a seguir para realizar a regress\u00e3o log\u00edstica no Excel para um conjunto de dados que indica se os jogadores de basquete universit\u00e1rio foram ou n\u00e3o convocados para a NBA (draft: 0 = n\u00e3o, 1 = sim) com base em seu GPA. pontos, rebotes e assist\u00eancias no passado. temporada.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Passo 1: Insira os dados.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Primeiro, insira os seguintes dados:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-7270 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel1.png\" alt=\"Dados brutos no Excel\" width=\"445\" height=\"454\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 2: insira as c\u00e9lulas para os coeficientes de regress\u00e3o.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Como temos tr\u00eas vari\u00e1veis explicativas no modelo (pts, rebs, ast), criaremos c\u00e9lulas para tr\u00eas coeficientes de regress\u00e3o mais uma para a origem no modelo. Definiremos os valores de cada um deles como 0,001, mas iremos otimiz\u00e1-los posteriormente.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-7271 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel2.png\" alt=\"Regress\u00e3o Log\u00edstica no Excel\" width=\"420\" height=\"440\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A seguir, precisaremos criar algumas novas colunas que usaremos para otimizar esses coeficientes de regress\u00e3o, incluindo logit, e <sup>logit<\/sup> , probabilidade e log de probabilidade.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Passo 3: Crie valores para o logit.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">A seguir, criaremos a coluna logit usando a seguinte f\u00f3rmula:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-7272 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel3.png\" alt=\"Equa\u00e7\u00e3o de regress\u00e3o log\u00edstica no Excel\" width=\"583\" height=\"399\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Passo 4: Crie valores para e <sup>logit<\/sup> .<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">A seguir, criaremos valores para e <sup>logit<\/sup> usando a seguinte f\u00f3rmula:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-7273 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel4.png\" alt=\"C\u00e1lculos de regress\u00e3o log\u00edstica no Excel\" width=\"463\" height=\"392\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 5: Crie valores de probabilidade.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">A seguir, criaremos valores de probabilidade usando a seguinte f\u00f3rmula:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34053 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logexcel1.jpg\" alt=\"\" width=\"657\" height=\"395\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 6: Crie valores para log de probabilidade.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">A seguir, criaremos valores para o log de verossimilhan\u00e7a usando a seguinte f\u00f3rmula:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Log de probabilidade = LN (Probabilidade)<\/strong><\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34055 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logexcel2-1.jpg\" alt=\"\" width=\"636\" height=\"407\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 7: Encontre a soma das probabilidades logar\u00edtmicas.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Por fim, encontraremos a soma das probabilidades logar\u00edtmicas, que \u00e9 o n\u00famero que tentaremos maximizar para resolver os coeficientes de regress\u00e3o.<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34056 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logexcel3.jpg\" alt=\"\" width=\"658\" height=\"407\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><strong>Etapa 8: Use o solucionador para resolver os coeficientes de regress\u00e3o.<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Se voc\u00ea ainda n\u00e3o instalou o solucionador no Excel, siga estas etapas para fazer isso:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Clique em <strong>Arquivo<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Clique em <strong>Op\u00e7\u00f5es<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Clique em <strong>Suplementos<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Clique em <strong>Suplemento Solver<\/strong> e em <strong>Ir<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">Na nova janela que aparece, marque a caixa ao lado de <strong>Solver Add-In<\/strong> e clique em <strong>Go<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Depois que o solucionador estiver instalado, v\u00e1 para o grupo <strong>An\u00e1lise<\/strong> na guia <strong>Dados<\/strong> e clique em <strong>Solver<\/strong> . Insira as seguintes informa\u00e7\u00f5es:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>Definir meta:<\/strong> Escolha a c\u00e9lula H14 que cont\u00e9m a soma das probabilidades logar\u00edtmicas.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Ao modificar as c\u00e9lulas vari\u00e1veis:<\/strong> escolha o intervalo de c\u00e9lulas B15:B18 que cont\u00e9m os coeficientes de regress\u00e3o.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Torne as vari\u00e1veis irrestritas n\u00e3o negativas:<\/strong> desmarque esta caixa.<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Selecione um m\u00e9todo de solu\u00e7\u00e3o:<\/strong> escolha GRG n\u00e3o linear.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Em seguida, clique em <strong>Resolver<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O Solver calcula automaticamente as estimativas do coeficiente de regress\u00e3o:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34057 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logexcel4.jpg\" alt=\"\" width=\"601\" height=\"394\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Por padr\u00e3o, os coeficientes de regress\u00e3o podem ser usados para encontrar a probabilidade de o projeto = 0.<\/span><\/p>\n<p> <span style=\"color: #000000;\">No entanto, geralmente na regress\u00e3o log\u00edstica estamos interessados na probabilidade de a vari\u00e1vel resposta = 1.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Assim, podemos simplesmente inverter os sinais de cada um dos coeficientes de regress\u00e3o:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-34058\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logexcel5.jpg\" alt=\"regress\u00e3o log\u00edstica no Excel\" width=\"641\" height=\"462\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Esses coeficientes de regress\u00e3o agora podem ser usados para encontrar a probabilidade de o projeto = 1.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Por exemplo, digamos que um jogador tenha em m\u00e9dia 14 pontos por jogo, 4 rebotes por jogo e 5 assist\u00eancias por jogo. A probabilidade deste jogador ser convocado para a NBA pode ser calculada da seguinte forma:<\/span><\/p>\n<p> <span style=\"color: #000000;\">P(projeto = 1) = e <sup>3,681193 + 0,112827*(14) -0,39568*(4) \u2013 0,67954*(5)<\/sup> \/ (1+e <sup>3,681193 + 0,112827*(14 ) -0,39568*(4) \u2013 0,67954*(5 )<\/sup> ) = <strong>0,57<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Como esta probabilidade \u00e9 maior que 0,5, prevemos que este jogador <em>&nbsp;<\/em> sendo convocado para a NBA.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong><\/span> <a href=\"https:\/\/statorials.org\/pt\/curva-de-rocha-excel\/\" target=\"_blank\" rel=\"noopener\">Como criar uma curva ROC no Excel (passo a passo)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A regress\u00e3o log\u00edstica \u00e9 um m\u00e9todo que usamos para ajustar um modelo de regress\u00e3o quando a vari\u00e1vel de resposta \u00e9 bin\u00e1ria. Este tutorial explica como realizar regress\u00e3o log\u00edstica no Excel. Exemplo: regress\u00e3o log\u00edstica no Excel Use as etapas a seguir para realizar a regress\u00e3o log\u00edstica no Excel para um conjunto de dados que indica se [&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-721","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 Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia<\/title>\n<meta name=\"description\" content=\"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.\" \/>\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\/regressao-logistica-excel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T23:42:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel1.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=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/\",\"url\":\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/\",\"name\":\"Como Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-28T23:42:23+00:00\",\"dateModified\":\"2023-07-28T23:42:23+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como realizar regress\u00e3o log\u00edstica no excel\"}]},{\"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais\",\"sameAs\":[\"https:\/\/statorials.org\/pt\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Como Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia","description":"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/","og_locale":"pt_PT","og_type":"article","og_title":"Como Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia","og_description":"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.","og_url":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/","og_site_name":"Statorials","article_published_time":"2023-07-28T23:42:23+00:00","og_image":[{"url":"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/logistiqueexcel1.png"}],"author":"Dr. benjamim anderson","twitter_card":"summary_large_image","twitter_misc":{"Escrito por":"Dr. benjamim anderson","Tempo estimado de leitura":"3 minutos"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/","url":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/","name":"Como Realizar Regress\u00e3o Log\u00edstica no Excel - Estatologia","isPartOf":{"@id":"https:\/\/statorials.org\/pt\/#website"},"datePublished":"2023-07-28T23:42:23+00:00","dateModified":"2023-07-28T23:42:23+00:00","author":{"@id":"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666"},"description":"Uma explica\u00e7\u00e3o simples sobre como realizar regress\u00e3o log\u00edstica no Excel, incluindo um exemplo passo a passo.","breadcrumb":{"@id":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/#breadcrumb"},"inLanguage":"pt-PT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pt\/regressao-logistica-excel\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pt\/regressao-logistica-excel\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Lar","item":"https:\/\/statorials.org\/pt\/"},{"@type":"ListItem","position":2,"name":"Como realizar regress\u00e3o log\u00edstica no excel"}]},{"@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. Com vasta experi\u00eancia e conhecimento na \u00e1rea de estat\u00edstica, estou empenhado em compartilhar meu conhecimento para capacitar os alunos por meio de Statorials. Saber mais","sameAs":["https:\/\/statorials.org\/pt"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/721","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/comments?post=721"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/posts\/721\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/media?parent=721"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/categories?post=721"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pt\/wp-json\/wp\/v2\/tags?post=721"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}