{"id":2633,"date":"2023-07-21T10:01:52","date_gmt":"2023-07-21T10:01:52","guid":{"rendered":"https:\/\/statorials.org\/pl\/to-losowa-probka\/"},"modified":"2023-07-21T10:01:52","modified_gmt":"2023-07-21T10:01:52","slug":"to-losowa-probka","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/to-losowa-probka\/","title":{"rendered":"Jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 w sas: z przyk\u0142adami"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Oto dwa najcz\u0119stsze sposoby wybierania <a href=\"https:\/\/statorials.org\/pl\/metody-pobierania-probek\/\" target=\"_blank\" rel=\"noopener\">prostej losowej pr\u00f3bki<\/a> wierszy ze zbioru danych w SAS-ie:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metoda 1: Wybierz losow\u0105 pr\u00f3bk\u0119 na podstawie rozmiaru pr\u00f3bki<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">proc surveyselect<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data\n    <span style=\"color: #3366ff;\">out<\/span> =random_sample\n    <span style=\"color: #3366ff;\">method<\/span> =srs <span style=\"color: #008000;\">\/*specify simple random sampling as sampling method*\/<\/span>\n    <span style=\"color: #3366ff;\">sampsize<\/span> =3 <span style=\"color: #008000;\">\/*select 3 observations randomly*\/<\/span>\n    <span style=\"color: #3366ff;\">seed<\/span> =123; <span style=\"color: #008000;\">\/*set seed to make this example reproducible*\/<\/span>\n<span style=\"color: #800080;\">run<\/span> ;\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\"><strong>Metoda 2: Wybierz losow\u0105 pr\u00f3bk\u0119, korzystaj\u0105c z proporcji wszystkich obserwacji<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">proc surveyselect<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data\n    <span style=\"color: #3366ff;\">out<\/span> =random_sample\n    <span style=\"color: #3366ff;\">method<\/span> =srs <span style=\"color: #008000;\">\/*specify simple random sampling as sampling method*\/<\/span>\n    <span style=\"color: #3366ff;\">samprate<\/span> =0.2 <span style=\"color: #008000;\">\/*select 20% of all observations randomly*\/<\/span>\n    <span style=\"color: #3366ff;\">seed<\/span> =123; <span style=\"color: #008000;\">\/*set seed to make this example reproducible*\/<\/span>\n<span style=\"color: #800080;\">run<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak u\u017cywa\u0107 ka\u017cdej metody z nast\u0119puj\u0105cym zbiorem danych w SAS-owym:<\/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> original_data;\n    <span style=\"color: #3366ff;\">input<\/span> team $pointsrebounds;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nWarriors 25 8\nWizards 18 12\nRockets 22 6\nCeltics 24 11\nThunder 27 14\nSpurs 33 19\nNets 31 20\nMavericks 34 10\nKings 22 11\nPelicans 39 23\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/<\/span>\n<span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> = original_data;<\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-23239 \" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/aleatoiresas1.jpg\" alt=\"\" width=\"248\" height=\"283\" srcset=\"\" sizes=\"auto, \"><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Wybierz losow\u0105 pr\u00f3bk\u0119 na podstawie rozmiaru pr\u00f3bki<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 obserwacji ze zbioru danych przy u\u017cyciu pr\u00f3by o wielko\u015bci n=3:<\/span><\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">\/*select random sample*\/<\/span>\n<span style=\"color: #800080;\">proc surveyselect<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data\n    <span style=\"color: #3366ff;\">out<\/span> =random_sample\n    <span style=\"color: #3366ff;\">method<\/span> =srs\n    <span style=\"color: #3366ff;\">sampsize<\/span> =3\n    <span style=\"color: #3366ff;\">seed<\/span> =123;\n<span style=\"color: #800080;\">run<\/span> ;<\/span>\n\n\/*view random sample*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =random_sample;<\/span><\/span><\/span><\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23240 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/aleatoiresas3.jpg\" alt=\"\" width=\"262\" height=\"114\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Widzimy, \u017ce z oryginalnego zbioru danych wybrano losowo trzy wiersze.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Wybierz losow\u0105 pr\u00f3bk\u0119, korzystaj\u0105c z proporcji wszystkich obserwacji<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 obserwacji ze zbioru danych za pomoc\u0105 funkcji <strong>samprate<\/strong> , aby okre\u015bli\u0107, \u017ce chcemy, aby losowa pr\u00f3bka reprezentowa\u0142a 20% wszystkich oryginalnych obserwacji:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*select random sample*\/<\/span>\nproc surveyselect<\/span> <span style=\"color: #3366ff;\">data<\/span> =original_data\n    <span style=\"color: #3366ff;\">out<\/span> =random_sample\n    <span style=\"color: #3366ff;\">method<\/span> =srs\n    <span style=\"color: #3366ff;\">samprate<\/span> =0.2\n    <span style=\"color: #3366ff;\">seed<\/span> =123;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*view random sample*\/\n<span style=\"color: #000000;\"><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =random_sample;<\/span><\/span><\/span>\n<\/strong><\/span><\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-23241 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/aleatoiresas2.jpg\" alt=\"\" width=\"268\" height=\"92\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Widzimy, \u017ce 20% wszystkich obserwacji (20% * 10 obserwacji = <strong>2<\/strong> ) z oryginalnego zbioru danych zosta\u0142o losowo wybranych do naszej pr\u00f3by.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe zadania w SAS-ie:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/procedura-podsumowujaca-w-sas\/\" target=\"_blank\" rel=\"noopener\">Jak korzysta\u0107 ze podsumowania procedur w SAS-ie<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/sas-zmiana-nazw-zmiennych\/\" target=\"_blank\" rel=\"noopener\">Jak zmieni\u0107 nazwy zmiennych w SAS-ie<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/bez-tworzenia-nowych-zmiennych\/\" target=\"_blank\" rel=\"noopener\">Jak utworzy\u0107 nowe zmienne w SAS-ie<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oto dwa najcz\u0119stsze sposoby wybierania prostej losowej pr\u00f3bki wierszy ze zbioru danych w SAS-ie: Metoda 1: Wybierz losow\u0105 pr\u00f3bk\u0119 na podstawie rozmiaru pr\u00f3bki proc surveyselect data =original_data out =random_sample method =srs \/*specify simple random sampling as sampling method*\/ sampsize =3 \/*select 3 observations randomly*\/ seed =123; \/*set seed to make this example reproducible*\/ run ; [&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-2633","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 wybra\u0107 losow\u0105 pr\u00f3bk\u0119 w SAS (z przyk\u0142adami) - Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 wierszy ze zbioru danych w SAS-ie, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\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\/to-losowa-probka\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 w SAS (z przyk\u0142adami) - Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 wierszy ze zbioru danych w SAS-ie, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/to-losowa-probka\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-21T10:01:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/aleatoiresas1.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=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pl\/to-losowa-probka\/\",\"url\":\"https:\/\/statorials.org\/pl\/to-losowa-probka\/\",\"name\":\"Jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 w SAS (z przyk\u0142adami) - Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-21T10:01:52+00:00\",\"dateModified\":\"2023-07-21T10:01:52+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 wierszy ze zbioru danych w SAS-ie, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/to-losowa-probka\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/to-losowa-probka\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/to-losowa-probka\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak wybra\u0107 losow\u0105 pr\u00f3bk\u0119 w sas: z przyk\u0142adami\"}]},{\"@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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