{"id":3886,"date":"2023-07-14T23:29:39","date_gmt":"2023-07-14T23:29:39","guid":{"rendered":"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/"},"modified":"2023-07-14T23:29:39","modified_gmt":"2023-07-14T23:29:39","slug":"sem-criar-um-conjunto-de-dados-vazio","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/","title":{"rendered":"Como criar um conjunto de dados vazio no sas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Existem duas maneiras comuns de criar um conjunto de dados vazio no SAS:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 1: crie um conjunto de dados vazio do zero<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> empty_data;\n<span style=\"color: #3366ff;\">attrib<\/span> \n    var1 <span style=\"color: #3366ff;\">length<\/span> =8 <span style=\"color: #3366ff;\">format<\/span> =best12. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">var1<\/span> \"\n    var2 <span style=\"color: #3366ff;\">length<\/span> =$30 <span style=\"color: #3366ff;\">format<\/span> =$30. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">var2<\/span> \"\n    var3 <span style=\"color: #3366ff;\">length<\/span> =8 <span style=\"color: #3366ff;\">format<\/span> =best12. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">var3<\/span> \"\n<span style=\"color: #3366ff;\">stop<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\"><strong>M\u00e9todo 2: criar um conjunto de dados vazio a partir de um conjunto de dados existente<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #800080;\">d<\/span> <span style=\"color: #000000;\"><span style=\"color: #800080;\">ata<\/span> empty_dat<\/span> <span style=\"color: #800080;\">a<\/span> <span style=\"color: #000000;\">;\n<\/span><span style=\"color: #000000;\"><span style=\"color: #3366ff;\">set<\/span> existing_data;\n<\/span><span style=\"color: #000000;\"><span style=\"color: #3366ff;\">stop<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/span><\/span><\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Em ambos os m\u00e9todos, a instru\u00e7\u00e3o <strong>stop<\/strong> impede que o SAS processe realmente as linhas.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Isso resulta em um conjunto de dados vazio com nomes de vari\u00e1veis, mas sem linhas.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar cada m\u00e9todo na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 1: Crie um conjunto de dados vazio do zero<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Podemos usar o c\u00f3digo a seguir para criar um conjunto de dados vazio chamado <strong>empty_data<\/strong> que cont\u00e9m quatro vari\u00e1veis:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*create empty dataset*\/<\/span>\ndata<\/span> empty_data;\n<span style=\"color: #3366ff;\">attrib<\/span> \n    employee_ID <span style=\"color: #3366ff;\">length<\/span> =8 <span style=\"color: #3366ff;\">format<\/span> =best12. <span style=\"color: #3366ff;\">label<\/span> = \" <span style=\"color: #993366;\">Employee ID<\/span> \"\n    employee_Name <span style=\"color: #3366ff;\">length<\/span> =$30 <span style=\"color: #3366ff;\">format<\/span> =$30. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">Employee Name<\/span> \"\n    sales <span style=\"color: #3366ff;\">length<\/span> =8 <span style=\"color: #3366ff;\">format<\/span> =best12. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">Sales<\/span> \"\n    sales_date <span style=\"color: #3366ff;\">length<\/span> =8 <span style=\"color: #3366ff;\">format<\/span> =date9. <span style=\"color: #3366ff;\">label<\/span> =\" <span style=\"color: #993366;\">SalesDate<\/span> \";\n<span style=\"color: #3366ff;\">stop<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Podemos ent\u00e3o usar <strong>o conte\u00fado proc<\/strong> para exibir o conte\u00fado do conjunto de dados:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*view contents of dataset*\/\n<\/span><span style=\"color: #000000;\"><span style=\"color: #800080;\">proc contents<\/span> <span style=\"color: #3366ff;\">data<\/span> =empty_data;\n<\/span><\/span><\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31311 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vide1.jpg\" alt=\"\" width=\"637\" height=\"248\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A partir do resultado, podemos ver que o conjunto de dados possui quatro vari\u00e1veis, mas nenhuma observa\u00e7\u00e3o, ou seja, zero linhas.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Na parte inferior do resultado, tamb\u00e9m podemos ver os nomes das quatro vari\u00e1veis que criamos:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31312 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vide2.jpg\" alt=\"\" width=\"399\" height=\"156\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo 2: Crie um conjunto de dados vazio a partir de um conjunto de dados existente<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Podemos usar o c\u00f3digo a seguir para criar um conjunto de dados vazio chamado <strong>empty_data<\/strong> que \u00e9 gerado a partir de um conjunto de dados existente chamado <a href=\"https:\/\/documentation.sas.com\/doc\/en\/pgmsascdc\/9.4_3.4\/statug\/statug_sashelp_sect010.htm\" target=\"_blank\" rel=\"noopener\">Comet<\/a> , que \u00e9 um conjunto de dados integrado ao SAS:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create empty dataset from existing dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> empty_dat;\n    <span style=\"color: #3366ff;\">set<\/span> sashelp.Comet;\n    <span style=\"color: #3366ff;\">stop<\/span> ;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Podemos ent\u00e3o usar <strong>o conte\u00fado proc<\/strong> para exibir o conte\u00fado do conjunto de dados:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*view contents of dataset*\/\n<\/span>proc contents <span style=\"color: #3366ff;\">data<\/span> =empty_data;<\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31313 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vide3.jpg\" alt=\"\" width=\"644\" height=\"261\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">A partir do resultado, podemos ver que o conjunto de dados possui quatro vari\u00e1veis, mas nenhuma observa\u00e7\u00e3o.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Na parte inferior da sa\u00edda, tamb\u00e9m podemos ver os nomes das quatro vari\u00e1veis criadas a partir do conjunto de dados existente:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-31314 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vide4.jpg\" alt=\"\" width=\"492\" height=\"165\" srcset=\"\" sizes=\"auto, \"><\/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\/sas-renomeando-variaveis\/\" target=\"_blank\" rel=\"noopener\">Como renomear vari\u00e1veis no SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/sem-criar-novas-variaveis\/\" target=\"_blank\" rel=\"noopener\">Como criar novas vari\u00e1veis no SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Existem duas maneiras comuns de criar um conjunto de dados vazio no SAS: M\u00e9todo 1: crie um conjunto de dados vazio do zero data empty_data; attrib var1 length =8 format =best12. label =&#8221; var1 &#8221; var2 length =$30 format =$30. label =&#8221; var2 &#8221; var3 length =8 format =best12. label =&#8221; var3 &#8221; stop ; [&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-3886","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 criar um conjunto de dados vazio no SAS - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como criar um conjunto de dados vazio no SAS, 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\/sem-criar-um-conjunto-de-dados-vazio\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como criar um conjunto de dados vazio no SAS - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como criar um conjunto de dados vazio no SAS, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-14T23:29:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/vide1.jpg\" \/>\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\/sem-criar-um-conjunto-de-dados-vazio\/\",\"url\":\"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/\",\"name\":\"Como criar um conjunto de dados vazio no SAS - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-14T23:29:39+00:00\",\"dateModified\":\"2023-07-14T23:29:39+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como criar um conjunto de dados vazio no SAS, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/sem-criar-um-conjunto-de-dados-vazio\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como criar um conjunto de dados vazio no sas\"}]},{\"@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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