{"id":4483,"date":"2023-07-10T18:22:37","date_gmt":"2023-07-10T18:22:37","guid":{"rendered":"https:\/\/statorials.org\/pt\/nao-deixe\/"},"modified":"2023-07-10T18:22:37","modified_gmt":"2023-07-10T18:22:37","slug":"nao-deixe","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/nao-deixe\/","title":{"rendered":"Como usar a instru\u00e7\u00e3o% let no sas (com exemplos)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a instru\u00e7\u00e3o <strong>%LET<\/strong> no SAS para criar vari\u00e1veis de macro que podem armazenar valores que voc\u00ea pode usar posteriormente em seu programa.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram duas maneiras comuns de usar a instru\u00e7\u00e3o <strong>%LET<\/strong> na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Use a instru\u00e7\u00e3o %LET para armazenar um valor num\u00e9rico no SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte conjunto de dados no SAS que cont\u00e9m informa\u00e7\u00f5es sobre v\u00e1rios jogadores de basquete:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n<span style=\"color: #3366ff;\">input<\/span> team $points;\n<span style=\"color: #3366ff;\">datalines<\/span> ;\nAt 22\nAt 14\nAt 23\nB 30\nB 18\nB20\nC13\nC12\nC26\n;\nrun;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;<\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35067 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/macro1.png\" alt=\"\" width=\"157\" height=\"255\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Podemos usar a instru\u00e7\u00e3o <strong>%LET<\/strong> para criar uma vari\u00e1vel macro chamada <strong>points_cutoff<\/strong> que tem um valor de <strong>20<\/strong> .<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos ent\u00e3o referenciar essa vari\u00e1vel posteriormente usando um E comercial ( <strong>&amp;<\/strong> ) na frente dela para criar um novo conjunto de dados contendo uma nova coluna indicando se cada jogador marcou mais de 20 pontos ou n\u00e3o:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*assign value of 20 to macro variable*\/\n<span style=\"color: #000000;\"><span style=\"color: #3366ff;\">%let<\/span> points_cutoff = 20;<\/span>\n\n\/*use macro variable to create new column called good_player*\/\n<\/span><span style=\"color: #800080;\">data<\/span> new_data;\n <span style=\"color: #3366ff;\">set<\/span> my_data;\n good_player = points &gt; &amp;points_cutoff;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view new dataset*\/\n<\/span><span style=\"color: #3366ff;\">proc print<\/span> <span style=\"color: #800080;\">data<\/span> = new_data;<\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35068 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/macro2.png\" alt=\"\" width=\"263\" height=\"270\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Observe que a nova coluna chamada <strong>good_player<\/strong> cont\u00e9m um valor <strong>1<\/strong> se o valor da coluna <strong>de pontos<\/strong> for maior que <strong>20<\/strong> ou um valor <strong>0<\/strong> se o valor da coluna de pontos n\u00e3o for maior que <strong>20<\/strong> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: Use a instru\u00e7\u00e3o% LET para armazenar o valor da string no SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Tamb\u00e9m podemos usar a instru\u00e7\u00e3o <strong>% LET<\/strong> no SAS para criar uma vari\u00e1vel macro que armazena um valor de string.<\/span><\/p>\n<p> <span style=\"color: #000000;\">O c\u00f3digo a seguir mostra como usar a instru\u00e7\u00e3o <strong>%LET<\/strong> para criar uma vari\u00e1vel chamada <strong>table_title<\/strong> que cont\u00e9m um valor &#8220;Basketball Data&#8221; que podemos referenciar posteriormente para imprimir um t\u00edtulo para o conjunto de dados:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n<span style=\"color: #3366ff;\">input<\/span> team $points;\n<span style=\"color: #3366ff;\">datalines<\/span> ;\nAt 22\nAt 14\nAt 23\nB 30\nB 18\nB20\nC13\nC12\nC26\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #000000;\"><span style=\"color: #008000;\">\/*assign string to macro variable*\/\n<\/span><span style=\"color: #3366ff;\">%let<\/span> table_title = \" <span style=\"color: #ff0000;\">Basketball Data<\/span> \";\n\n<span style=\"color: #008000;\">\/*print dataset with title*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n    <span style=\"color: #3366ff;\">title<\/span> &amp;table_title;\n<span style=\"color: #800080;\">run<\/span> ;<\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35069 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/macro3.png\" alt=\"\" width=\"180\" height=\"313\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">O conjunto de dados cont\u00e9m o t\u00edtulo que especificamos na vari\u00e1vel macro.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da instru\u00e7\u00e3o SAS <strong>LET<\/strong> <strong>&nbsp;<\/strong> <a href=\"https:\/\/documentation.sas.com\/doc\/en\/pgmsascdc\/9.4_3.5\/mcrolref\/p18wszyqagt1qcn1t6vo5piib1bq.htm\" target=\"_blank\" rel=\"noopener\">aqui<\/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 explicam como executar outras tarefas comuns no SAS:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/procedimento-resumido-em-sas\/\" target=\"_blank\" rel=\"noopener\">Como usar o resumo do procedimento no SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/proc-tabular-sas\/\" target=\"_blank\" rel=\"noopener\">Como usar o Proc Tabulate no SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/classificacao-proc-sas\/\" target=\"_blank\" rel=\"noopener\">Como usar o agrupamento Proc no SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a instru\u00e7\u00e3o %LET no SAS para criar vari\u00e1veis de macro que podem armazenar valores que voc\u00ea pode usar posteriormente em seu programa. Os exemplos a seguir mostram duas maneiras comuns de usar a instru\u00e7\u00e3o %LET na pr\u00e1tica. Exemplo 1: Use a instru\u00e7\u00e3o %LET para armazenar um valor num\u00e9rico no SAS Suponha que [&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-4483","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 usar a instru\u00e7\u00e3o% LET no SAS (com exemplos) - Estatologia<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como usar a instru\u00e7\u00e3o %LET no SAS para criar vari\u00e1veis macro, 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\/nao-deixe\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como usar a instru\u00e7\u00e3o% LET no SAS (com exemplos) - Estatologia\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como usar a instru\u00e7\u00e3o %LET no SAS para criar vari\u00e1veis macro, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/nao-deixe\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-10T18:22:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/macro1.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\/nao-deixe\/\",\"url\":\"https:\/\/statorials.org\/pt\/nao-deixe\/\",\"name\":\"Como usar a instru\u00e7\u00e3o% LET no SAS (com exemplos) - Estatologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-10T18:22:37+00:00\",\"dateModified\":\"2023-07-10T18:22:37+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como usar a instru\u00e7\u00e3o %LET no SAS para criar vari\u00e1veis macro, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/nao-deixe\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/nao-deixe\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/nao-deixe\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como usar a instru\u00e7\u00e3o% let no sas (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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