{"id":4433,"date":"2023-07-11T04:21:51","date_gmt":"2023-07-11T04:21:51","guid":{"rendered":"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/"},"modified":"2023-07-11T04:21:51","modified_gmt":"2023-07-11T04:21:51","slug":"sas-proc-significa-iqr","status":"publish","type":"post","link":"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/","title":{"rendered":"Sas: come visualizzare l&#39;iqr in proc means"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">\u00c8 possibile utilizzare <strong>PROC MEANS<\/strong> per calcolare le statistiche di riepilogo per le variabili in SAS.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Per impostazione predefinita, <strong>PROC MEANS<\/strong> non visualizza l&#8217;intervallo interquartile (IQR) come una delle statistiche di riepilogo, ma \u00e8 possibile utilizzare l&#8217;istruzione <strong>QRANGE<\/strong> per includere l&#8217;IQR nell&#8217;output:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #800080;\">proc means<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data <span style=\"color: #3366ff;\">N Mean QRANGE Std Min Max<\/span> ;\n    <span style=\"color: #3366ff;\">var<\/span> points;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Questo particolare esempio calcola il numero totale di osservazioni, media, intervallo interquartile, deviazione standard, valori minimo e massimo per una variabile chiamata <strong>punti<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">L&#8217;esempio seguente mostra come utilizzare questa sintassi nella pratica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Esempio: Mostra IQR in PROC MEANS in SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Supponiamo di avere il seguente set di dati in SAS che contiene informazioni su vari giocatori di basket:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <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 assists;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nAt 10 2\nAt 17 5\nAt 17 6\nAt 18 3\nAt 15 0\nB 10 2\nB 14 5\nB 13 4\nB 29 0\nB 25 2\nC 12 1\nC 30 1\nC 34 3\nC 12 4\nC 11 7\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> =my_data;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-33383 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/desc1.jpg\" alt=\"\" width=\"212\" height=\"405\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Supponiamo di utilizzare <strong>PROC MEANS<\/strong> per calcolare le statistiche riassuntive per la variabile <strong>punti<\/strong> nel set di dati:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*calculate summary statistics for points variable*\/\n<\/span><span style=\"color: #800080;\">proc means<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;\n    <span style=\"color: #3366ff;\">var<\/span> points;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-33385\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/desc2.jpg\" alt=\"statistica descrittiva in SAS utilizzando PROC MEANS\" width=\"423\" height=\"130\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Per impostazione predefinita, <strong>PROC MEANS<\/strong> calcola le seguenti statistiche descrittive:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>N<\/strong> : Il numero totale di osservazioni<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Media<\/strong> : il valore medio dei punti<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Std<\/strong> Dev: la deviazione standard dei punti<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Minimo<\/strong> : il valore minimo dei punti<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>Massimo<\/strong> : il valore massimo dei punti<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Si noti che l&#8217;IQR non \u00e8 incluso nell&#8217;output.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Possiamo usare la seguente sintassi per includere l&#8217;IQR nell&#8217;output:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*calculate summary statistics for points and include IQR*\/<\/span>\nproc means<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data <span style=\"color: #3366ff;\">N Mean QRANGE Std Min Max<\/span> ;\n    <span style=\"color: #3366ff;\">var<\/span> points;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34710 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/iq1.png\" alt=\"\" width=\"479\" height=\"112\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">Tieni presente che l&#8217;output ora include il valore dell&#8217;intervallo interquartile per la variabile <strong>punti<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Possiamo vedere che l&#8217;IQR per la variabile <strong>punti<\/strong> risulta essere <strong>13<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ricorda che l&#8217;IQR rappresenta la differenza tra il 75\u00b0 percentile e il 25\u00b0 percentile per una determinata variabile.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Se vuoi vedere i valori di questi percentili puoi includere <strong>P25<\/strong> e <strong>P75<\/strong> nella procedura <strong>PROC MEANS<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*calculate summary statistics for points and include IQR*\/<\/span>\nproc means<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data <span style=\"color: #3366ff;\">N Mean P25 P75 QRANGE Std Min Max<\/span> ;\n    <span style=\"color: #3366ff;\">var<\/span> points;\n<span style=\"color: #800080;\">run<\/span> ;<\/strong> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-34711 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/iq2.png\" alt=\"\" width=\"633\" height=\"112\" srcset=\"\" sizes=\"\"><\/p>\n<p> <span style=\"color: #000000;\">L&#8217;output ora include il 25\u00b0 percentile, il 75\u00b0 percentile e l&#8217;intervallo interquartile per la variabile <strong>punti<\/strong> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Risorse addizionali<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">I seguenti tutorial spiegano come eseguire altre attivit\u00e0 comuni in SAS:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><a href=\"https:\/\/statorials.org\/it\/statistica-descrittiva-in-sas\/\" target=\"_blank\" rel=\"noopener\">Come calcolare le statistiche descrittive in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/tabella-delle-frequenze-sas\/\" target=\"_blank\" rel=\"noopener\">Come creare tabelle di frequenza in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/sas-percentili\/\" target=\"_blank\" rel=\"noopener\">Come calcolare i percentili in SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/it\/tavolo-pivot-sas\/\" target=\"_blank\" rel=\"noopener\">Come creare tabelle pivot in SAS<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c8 possibile utilizzare PROC MEANS per calcolare le statistiche di riepilogo per le variabili in SAS. Per impostazione predefinita, PROC MEANS non visualizza l&#8217;intervallo interquartile (IQR) come una delle statistiche di riepilogo, ma \u00e8 possibile utilizzare l&#8217;istruzione QRANGE per includere l&#8217;IQR nell&#8217;output: proc means data =my_data N Mean QRANGE Std Min Max ; var points; [&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>SAS: Come visualizzare IQR in PROC MEANS - Statorials<\/title>\n<meta name=\"description\" content=\"Questo tutorial spiega come visualizzare IQR nell&#039;output di PROC MEANS in SAS, con un esempio.\" \/>\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\/sas-proc-significa-iqr\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SAS: Come visualizzare IQR in PROC MEANS - Statorials\" \/>\n<meta property=\"og:description\" content=\"Questo tutorial spiega come visualizzare IQR nell&#039;output di PROC MEANS in SAS, con un esempio.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-11T04:21:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/desc1.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\/sas-proc-significa-iqr\/\",\"url\":\"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/\",\"name\":\"SAS: Come visualizzare IQR in PROC MEANS - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/it\/#website\"},\"datePublished\":\"2023-07-11T04:21:51+00:00\",\"dateModified\":\"2023-07-11T04:21:51+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/it\/#\/schema\/person\/0896f191fb9fb019f2cd8623112cb3ae\"},\"description\":\"Questo tutorial spiega come visualizzare IQR nell&#39;output di PROC MEANS in SAS, con un esempio.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/it\/sas-proc-significa-iqr\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Casa\",\"item\":\"https:\/\/statorials.org\/it\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sas: come visualizzare l&#39;iqr in proc means\"}]},{\"@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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