{"id":4612,"date":"2023-07-09T15:51:23","date_gmt":"2023-07-09T15:51:23","guid":{"rendered":"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/"},"modified":"2023-07-09T15:51:23","modified_gmt":"2023-07-09T15:51:23","slug":"saida-de-linha-do-excel","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/","title":{"rendered":"Excel: como interpretar a sa\u00edda da fun\u00e7\u00e3o proj.lin"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a fun\u00e7\u00e3o <strong>PROJ.LIN<\/strong> para ajustar um modelo de regress\u00e3o no Excel.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Esta fun\u00e7\u00e3o usa a seguinte sintaxe b\u00e1sica:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 17px;\"> <strong>LINEST(known_y's, known_x's, const, stats)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Ouro:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>conhecidos_y&#8217;s<\/strong> : uma coluna de valores para a vari\u00e1vel de resposta<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>conhecidos_x\u2019s<\/strong> : uma ou mais colunas de valores para as vari\u00e1veis preditoras<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>const<\/strong> : TRUE = calcula a intercepta\u00e7\u00e3o normalmente, FALSE = for\u00e7a a intercepta\u00e7\u00e3o a zero<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>estat\u00edsticas<\/strong> : TRUE = calcula estat\u00edsticas de regress\u00e3o adicionais, FALSE = calcula apenas coeficientes<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como interpretar a sa\u00edda da fun\u00e7\u00e3o <strong>PROJ.LIN<\/strong> na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo: como interpretar a sa\u00edda PROJ.LIN no Excel<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte conjunto de dados que cont\u00e9m uma vari\u00e1vel preditora (x) e uma vari\u00e1vel de resposta (y):<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35986 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ligne1-1.png\" alt=\"\" width=\"482\" height=\"411\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Podemos digitar a seguinte f\u00f3rmula na c\u00e9lula <strong>D1<\/strong> para realizar uma regress\u00e3o linear simples com este conjunto de dados:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 17px;\"> <strong>=LINEST( <span style=\"color: #3366ff;\">A2:A15<\/span> , <span style=\"color: #ff0000;\">B2:B15<\/span> , TRUE, TRUE)\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">A sa\u00edda da fun\u00e7\u00e3o <strong>PROJ.LIN<\/strong> cont\u00e9m os coeficientes do modelo de regress\u00e3o, bem como diversas estat\u00edsticas adicionais:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35987 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ligne2.png\" alt=\"\" width=\"485\" height=\"430\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A captura de tela a seguir fornece uma explica\u00e7\u00e3o de cada valor no resultado:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-35988\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ligne3.png\" alt=\"Sa\u00edda PROJ.LIN do Excel\" width=\"475\" height=\"374\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Pelo resultado podemos ver:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">O coeficiente para \u03b2 <sub>0<\/sub> \u00e9 <strong>3,52169<\/strong> .<\/span><\/li>\n<li> <span style=\"color: #000000;\">O coeficiente para <sub>\u03b21<\/sub> \u00e9 <strong>0,693717<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Usando esses valores, podemos escrever a equa\u00e7\u00e3o para este modelo de regress\u00e3o simples:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>y = 3,52169 + 0,693717(x)<\/strong><\/span><\/p>\n<p> <span style=\"color: #000000;\">Interpretamos isso como significando que cada aumento adicional de uma unidade na vari\u00e1vel preditora x est\u00e1 associado a um aumento m\u00e9dio de <strong>0,693717<\/strong> na vari\u00e1vel de resposta y.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Interpretamos o termo original como significando que quando x \u00e9 zero, o valor m\u00e9dio de y \u00e9 <strong>3,52169<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Tamb\u00e9m podemos ver:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">O valor R-quadrado do modelo \u00e9 <strong>0,888<\/strong> .<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Interpretamos isso como significando que a vari\u00e1vel preditora \u00e9 capaz de explicar <strong>88,8%<\/strong> da varia\u00e7\u00e3o na vari\u00e1vel resposta do modelo.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Relacionado:<\/strong> <a href=\"https:\/\/statorials.org\/pt\/bom-valor-de-r-ao-quadrado\/\" target=\"_blank\" rel=\"noopener\">O que \u00e9 um bom valor de R ao quadrado?<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir fornecem informa\u00e7\u00f5es adicionais sobre regress\u00e3o no Excel:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/valor-p-da-regressao-do-excel\/\" target=\"_blank\" rel=\"noopener\">Como interpretar valores P na sa\u00edda de regress\u00e3o no Excel<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/adicione-uma-linha-de-regressao-ao-grafico-de-dispersao-do-excel\/\" target=\"_blank\" rel=\"noopener\">Como adicionar uma linha de regress\u00e3o a um gr\u00e1fico de dispers\u00e3o no Excel<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/regressao-polinomial-excel\/\" target=\"_blank\" rel=\"noopener\">Como realizar regress\u00e3o polinomial no Excel<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a fun\u00e7\u00e3o PROJ.LIN para ajustar um modelo de regress\u00e3o no Excel. Esta fun\u00e7\u00e3o usa a seguinte sintaxe b\u00e1sica: LINEST(known_y&#8217;s, known_x&#8217;s, const, stats) Ouro: conhecidos_y&#8217;s : uma coluna de valores para a vari\u00e1vel de resposta conhecidos_x\u2019s : uma ou mais colunas de valores para as vari\u00e1veis preditoras const : TRUE = calcula a [&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-4612","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>Excel: Como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN no Excel, 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\/saida-de-linha-do-excel\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Excel: Como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN no Excel, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-09T15:51:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/ligne1-1.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\/saida-de-linha-do-excel\/\",\"url\":\"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/\",\"name\":\"Excel: Como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-09T15:51:23+00:00\",\"dateModified\":\"2023-07-09T15:51:23+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como interpretar a sa\u00edda da fun\u00e7\u00e3o PROJ.LIN no Excel, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/saida-de-linha-do-excel\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Excel: como interpretar a sa\u00edda da fun\u00e7\u00e3o proj.lin\"}]},{\"@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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