{"id":3641,"date":"2023-07-16T09:20:25","date_gmt":"2023-07-16T09:20:25","guid":{"rendered":"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/"},"modified":"2023-07-16T09:20:25","modified_gmt":"2023-07-16T09:20:25","slug":"srednia-ruchoma-sas","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/","title":{"rendered":"Jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w sas"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">W statystykach <strong>\u015brednia ruchoma<\/strong> reprezentuje \u015bredni\u0105 z poprzednich <em>n<\/em> warto\u015bci w zbiorze danych.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Najprostszym sposobem obliczenia \u015bredniej ruchomej w SAS-ie jest u\u017cycie instrukcji <strong>procexp<\/strong> .<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Poni\u017cszy przyk\u0142ad pokazuje, jak u\u017cywa\u0107 tego stwierdzenia w praktyce.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad: Oblicz \u015bredni\u0105 ruchom\u0105 w SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy, \u017ce tworzymy nast\u0119puj\u0105cy zbi\u00f3r danych w SAS-ie:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\"><span style=\"color: #000000;\"><span style=\"color: #800080;\">data<\/span> original_data;\n    <span style=\"color: #3366ff;\">input<\/span> time values;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\n1 7\n2 12\n3 14\n4 12\n5 16\n6 18\n7 11\n8 10\n9 14\n10 17\n;\n<span style=\"color: #800080;\">run<\/span> ;<\/span>\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> <span style=\"color: #000000;\">= original_data;\n<\/span><\/span><\/strong><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29901 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/masa1.jpg\" alt=\"\" width=\"163\" height=\"298\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Za\u0142\u00f3\u017cmy teraz, \u017ce chcemy obliczy\u0107 3-okresow\u0105 \u015bredni\u0105 ruchom\u0105 dla kolumny <strong>warto\u015bci<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">W tym celu mo\u017cemy u\u017cy\u0107 <strong>procexp<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*calculate 3-period moving average for values*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">proc expand<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data <span style=\"color: #3366ff;\">out<\/span> =out_data method=none;\n    <span style=\"color: #3366ff;\">idtime<\/span> ;\n    <span style=\"color: #3366ff;\">convert<\/span> values = values_ma3 \/ <span style=\"color: #3366ff;\">transout<\/span> = (movave <span style=\"color: #008000;\">3<\/span> );\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view results*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =out_data;<\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29902 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/masa2.jpg\" alt=\"\" width=\"256\" height=\"295\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Nowa kolumna o nazwie <strong>my3_values<\/strong> wy\u015bwietla 3-okresow\u0105 \u015bredni\u0105 ruchom\u0105 dla kolumny <strong>warto\u015bci<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Na przyk\u0142ad trzecia warto\u015b\u0107 kolumny <strong>warto\u015bci_my3<\/strong> reprezentuje \u015bredni\u0105 z 3 poprzednich okres\u00f3w:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\u015arednia krocz\u0105ca = (7+12+14) \/ 3 = <strong>11,0000<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Czwarta warto\u015b\u0107 kolumny <strong>warto\u015bci_ma3<\/strong> reprezentuje r\u00f3wnie\u017c \u015bredni\u0105 z 3 poprzednich okres\u00f3w:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">\u015arednia krocz\u0105ca = (12+14+12) \/ 3 = <strong>12,6667<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">I tak dalej.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Aby obliczy\u0107 \u015bredni\u0105 ruchom\u0105 dla innej liczby okres\u00f3w, wystarczy zmieni\u0107 warto\u015b\u0107 po <strong>wprowadzeniu<\/strong> kodu.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Na przyk\u0142ad mogliby\u015bmy u\u017cy\u0107 poni\u017cszego kodu do obliczenia 4-okresowej \u015bredniej krocz\u0105cej dla kolumny <strong>warto\u015bci<\/strong> :<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*calculate 4-period moving average for values*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">proc expand<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data <span style=\"color: #3366ff;\">out<\/span> =out_data method=none;\n    <span style=\"color: #3366ff;\">idtime<\/span> ;\n    <span style=\"color: #3366ff;\">convert<\/span> values = values_ma4 \/ <span style=\"color: #3366ff;\">transout<\/span> = (movave <span style=\"color: #008000;\">4<\/span> );\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*view results*\/\n<\/span>proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =out_data;<\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-29903 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/masa3.jpg\" alt=\"\" width=\"264\" height=\"310\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Nowa kolumna o nazwie <strong>warto\u015bci_my4<\/strong> wy\u015bwietla 4-okresow\u0105 \u015bredni\u0105 ruchom\u0105 dla kolumny <strong>warto\u015bci<\/strong> .<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017csze artyku\u0142y wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe zadania w SAS-ie:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/wartosci-odstajace-1\/\" target=\"_blank\" rel=\"noopener\">Jak zidentyfikowa\u0107 warto\u015bci odstaj\u0105ce w SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/takie-percentyle\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 percentyle w SAS-ie<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/sredni-tryb-srodkowy-w-sluzie\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 \u015bredni\u0105, median\u0119 i tryb w SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>W statystykach \u015brednia ruchoma reprezentuje \u015bredni\u0105 z poprzednich n warto\u015bci w zbiorze danych. Najprostszym sposobem obliczenia \u015bredniej ruchomej w SAS-ie jest u\u017cycie instrukcji procexp . Poni\u017cszy przyk\u0142ad pokazuje, jak u\u017cywa\u0107 tego stwierdzenia w praktyce. Przyk\u0142ad: Oblicz \u015bredni\u0105 ruchom\u0105 w SAS Za\u0142\u00f3\u017cmy, \u017ce tworzymy nast\u0119puj\u0105cy zbi\u00f3r danych w SAS-ie: \/*create dataset*\/ data original_data; input time values; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-3641","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS - Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku na przyk\u0142adzie wyja\u015bniono, jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS-ie.\" \/>\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\/pl\/srednia-ruchoma-sas\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS - Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku na przyk\u0142adzie wyja\u015bniono, jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS-ie.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-16T09:20:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/masa1.jpg\" \/>\n<meta name=\"author\" content=\"Benjamin Anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisane przez\" \/>\n\t<meta name=\"twitter:data1\" content=\"Benjamin Anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Szacowany czas czytania\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/\",\"url\":\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/\",\"name\":\"Jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-16T09:20:25+00:00\",\"dateModified\":\"2023-07-16T09:20:25+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku na przyk\u0142adzie wyja\u015bniono, jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w SAS-ie.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/srednia-ruchoma-sas\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak obliczy\u0107 \u015bredni\u0105 ruchom\u0105 w sas\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pl\/#website\",\"url\":\"https:\/\/statorials.org\/pl\/\",\"name\":\"Statorials\",\"description\":\"Tw\u00f3j przewodnik po kompetencjach statystycznych!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pl-PL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\",\"name\":\"Benjamin Anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pl-PL\",\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pl\/wp-content\/uploads\/2023\/11\/Benjamin-Anderson-96x96.jpg\",\"caption\":\"Benjamin Anderson\"},\"description\":\"Cze\u015b\u0107, jestem Benjamin i jestem emerytowanym profesorem statystyki, kt\u00f3ry zosta\u0142 oddanym nauczycielem Statorials. 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