{"id":2639,"date":"2023-07-21T09:38:58","date_gmt":"2023-07-21T09:38:58","guid":{"rendered":"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/"},"modified":"2023-07-21T09:38:58","modified_gmt":"2023-07-21T09:38:58","slug":"variabili-di-riorganizzazione-sas","status":"publish","type":"post","link":"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/","title":{"rendered":"Come riordinare le variabili in sas (con esempi)"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u00c8 possibile utilizzare la funzione <strong>RETAIN<\/strong> in SAS per riordinare rapidamente le variabili in un set di dati.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ecco i tre modi pi\u00f9 comuni per utilizzare questa funzionalit\u00e0:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metodo 1: riorganizzare tutte le variabili<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> var4 var5 var1 var3 var2;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metodo 2: sposta una variabile in avanti<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> var4;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metodo 3: spostare pi\u00f9 variabili in avanti<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> var4 var5;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Gli esempi seguenti mostrano come utilizzare ciascun metodo con il seguente set di dati in SAS:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create dataset*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> original_data;\n    <span style=\"color: #3366ff;\">input<\/span> team $ points rebounds assists steals;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nA 18 10 4 5\nB 24 11 6 7\nC 26 14 6 8\nD 34 22 5 3\nE 38 3 7 7\nF 45 12 4 4\nG 23 7 9 1\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = original_data;<\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23269 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/commandesas1.jpg\" alt=\"\" width=\"348\" height=\"211\" srcset=\"\" sizes=\"\"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Esempio 1: riorganizzare tutte le variabili<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Il codice seguente mostra come riorganizzare le variabili nel seguente ordine: squadra, rimbalzi, assist, quindi punti.<\/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 new dataset with variables reordered*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> team rebounds assists steals points;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;<\/span>\n\n<span style=\"color: #008000;\">\/*view new dataset*\/<\/span>\n<span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> <span style=\"color: #000000;\">= new_data;<\/span><\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-23270\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/commandesas2.jpg\" alt=\"riordinare le variabili in SAS\" width=\"350\" height=\"217\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Tieni presente che le variabili vengono riorganizzate nell&#8217;ordine esatto specificato nella funzione <strong>RETAIN<\/strong> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Esempio 2: sposta una variabile in avanti<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Il codice seguente mostra come spostare in avanti la variabile <strong>helper<\/strong> lasciando tutte le altre variabili nello stesso ordine:<\/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 new dataset with variables reordered*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> assists;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view new dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = new_data;<\/span><\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23271 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/commandesas3.jpg\" alt=\"\" width=\"348\" height=\"211\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Vediamo che la variabile <strong>assist<\/strong> \u00e8 ora in prima posizione mentre tutte le altre variabili sono rimaste nello stesso ordine.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Esempio 3: spostare pi\u00f9 variabili in avanti<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Il codice seguente mostra come spostare in avanti le variabili <strong>helper<\/strong> e <strong>rimbalzare<\/strong> lasciando tutte le altre variabili nello stesso ordine:<\/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 new dataset with variables reordered*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> new_data;\n    <span style=\"color: #3366ff;\">retain<\/span> assists;\n    <span style=\"color: #3366ff;\">set<\/span> original_data;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view new dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = new_data;<\/span><\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23272 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/commandesas4.jpg\" alt=\"\" width=\"352\" height=\"211\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Vediamo che le variabili <strong>assist<\/strong> e <strong>rimbalzi<\/strong> sono ora in prima e seconda posizione mentre tutte le altre variabili sono rimaste nello stesso ordine.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Risorse addizionali<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">I seguenti tutorial spiegano come eseguire altre attivit\u00e0 comuni in SAS:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/it\/procedura-sommaria-in-sas\/\" target=\"_blank\" rel=\"noopener\">Come utilizzare il riepilogo della procedura in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/proc-tabulare-sas\/\" target=\"_blank\" rel=\"noopener\">Come utilizzare Proc Tabulate in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/sas-rinominare-le-variabili\/\" target=\"_blank\" rel=\"noopener\">Come rinominare le variabili in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/senza-creare-nuove-variabili\/\" target=\"_blank\" rel=\"noopener\">Come creare nuove variabili in SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c8 possibile utilizzare la funzione RETAIN in SAS per riordinare rapidamente le variabili in un set di dati. Ecco i tre modi pi\u00f9 comuni per utilizzare questa funzionalit\u00e0: Metodo 1: riorganizzare tutte le variabili data new_data; retain var4 var5 var1 var3 var2; set original_data; run ; Metodo 2: sposta una variabile in avanti data new_data; [&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":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Come riorganizzare le variabili in SAS (con esempi) - Statorials<\/title>\n<meta name=\"description\" content=\"Questo tutorial spiega come riorganizzare le variabili in un set di dati in SAS, con diversi esempi.\" \/>\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\/it\/variabili-di-riorganizzazione-sas\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Come riorganizzare le variabili in SAS (con esempi) - Statorials\" \/>\n<meta property=\"og:description\" content=\"Questo tutorial spiega come riorganizzare le variabili in un set di dati in SAS, con diversi esempi.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-21T09:38:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/commandesas1.jpg\" \/>\n<meta name=\"author\" content=\"Benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/\",\"url\":\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/\",\"name\":\"Come riorganizzare le variabili in SAS (con esempi) - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/it\/#website\"},\"datePublished\":\"2023-07-21T09:38:58+00:00\",\"dateModified\":\"2023-07-21T09:38:58+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\"},\"description\":\"Questo tutorial spiega come riorganizzare le variabili in un set di dati in SAS, con diversi esempi.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/it\/variabili-di-riorganizzazione-sas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Casa\",\"item\":\"https:\/\/statorials.org\/it\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Come riordinare le variabili in sas (con esempi)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/it\/#website\",\"url\":\"https:\/\/statorials.org\/it\/\",\"name\":\"Statorials\",\"description\":\"La tua guida all&#039;alfabetizzazione statistica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/it\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\",\"name\":\"Benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/it\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin anderson\"},\"description\":\"Ciao, sono Benjamin, un professore di statistica in pensione diventato insegnante dedicato di Statorials. 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