{"id":1959,"date":"2023-07-24T07:21:08","date_gmt":"2023-07-24T07:21:08","guid":{"rendered":"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/"},"modified":"2023-07-24T07:21:08","modified_gmt":"2023-07-24T07:21:08","slug":"funkcja-kwantylowa-w-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/","title":{"rendered":"Jak korzysta\u0107 z funkcji quantile() w r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">W statystyce <strong>kwantyle<\/strong> to warto\u015bci dziel\u0105ce sklasyfikowany zbi\u00f3r danych na r\u00f3wne grupy.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Funkcji <strong>quantile()<\/strong> w R mo\u017cna u\u017cy\u0107 do obliczenia przyk\u0142adowych kwantyli zbioru danych.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Ta funkcja wykorzystuje nast\u0119puj\u0105c\u0105 podstawow\u0105 sk\u0142adni\u0119:<\/span><\/p>\n<p> <strong><span style=\"color: #000000;\">kwantyl(x, probs = seq(0, 1, 0,25), na.rm = FALSE)<\/span><\/strong><\/p>\n<p> <span style=\"color: #000000;\">Z\u0142oto:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\"><strong>x<\/strong> : nazwa wektora<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>probs<\/strong> : Numeryczny wektor prawdopodobie\u0144stw<\/span><\/li>\n<li> <span style=\"color: #000000;\"><strong>na.rm<\/strong> : czy usun\u0105\u0107 warto\u015bci NA<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce wykorzysta\u0107 t\u0119 funkcj\u0119.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: oblicz kwantyle wektora<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak obliczy\u0107 kwantyle wektora w R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#define vector of data<\/span> \ndata = c(1, 3, 3, 4, 5, 7, 8, 9, 12, 13, 13, 15, 18, 20, 22, 23, 24, 28)\n\n<span style=\"color: #008080;\">#calculate quartiles<\/span>\nquantile(data, probs = seq(0, 1, 1\/4))\n\n 0% 25% 50% 75% 100% \n1.0 5.5 12.5 19.5 28.0 \n\n<span style=\"color: #008080;\">#calculate quintiles<\/span>\nquantile(data, probs = seq(0, 1, 1\/5))\n\n 0% 20% 40% 60% 80% 100% \n1.0 4.4 8.8 13.4 21.2 28.0 \n\n<span style=\"color: #008080;\">#calculate deciles<\/span>\nquantile(data, probs = seq(0, 1, 1\/10))\n\n 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% \n1.0 3.0 4.4 7.1 8.8 12.5 13.4 17.7 21.2 23.3 28.0 \n\n<span style=\"color: #008080;\">#calculate random quantiles of interest<\/span>\nquantile(data, probs = c(.2, .5, .9))\n\n20% 50% 90% \n4.4 12.5 23.3\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Oblicz kwantyle kolumn w ramce danych<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak obliczy\u0107 kwantyle dla okre\u015blonej kolumny w ramce danych:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (var1=c(1, 3, 3, 4, 5, 7, 7, 8, 12, 14, 18),\n                 var2=c(7, 7, 8, 3, 2, 6, 8, 9, 11, 11, 16),\n                 var3=c(3, 3, 6, 6, 8, 4, 4, 7, 10, 10, 11))\n\n<span style=\"color: #008080;\">#calculate quartiles of column 'var2'\n<\/span>quantile(df$var2, probs = seq(0, 1, 1\/4))\n\n  0% 25% 50% 75% 100% \n 2.0 6.5 8.0 10.0 16.0<\/span><\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Mo\u017cemy r\u00f3wnie\u017c u\u017cy\u0107 funkcji <strong>sapply()<\/strong> do obliczenia kwantyli dla wielu kolumn jednocze\u015bnie:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #000000;\"><span style=\"color: #008080;\">#calculate quartiles of every column\n<\/span>sapply(df, <span style=\"color: #008000;\">function<\/span> (x) quantile(x, probs = seq(0, 1, 1\/4)))\n\n     var1 var2 var3\n0% 1.0 2.0 3\n25% 3.5 6.5 4\n50% 7.0 8.0 6\n75% 10.0 10.0 9\n100% 18.0 16.0 11\n<\/span><\/strong><\/pre>\n<h3> <strong>Przyk\u0142ad 3: obliczanie kwantyli wed\u0142ug grup<\/strong><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak u\u017cywa\u0107 funkcji pakietu <a href=\"https:\/\/dplyr.tidyverse.org\/\" target=\"_blank\" rel=\"noopener\">dplyr<\/a> do obliczania kwantyli na podstawie zmiennej grupuj\u0105cej:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #993300;\">library<\/span> (dplyr)\n\n<span style=\"color: #008080;\">#define data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (team=c('A', 'A', 'A', 'A', 'B', 'B', 'B', 'B', 'C', 'C', 'C') ,\n                 points=c(1, 3, 3, 4, 5, 7, 7, 8, 12, 14, 18))\n\n<span style=\"color: #008080;\">#define quantiles of interest<\/span>\nq = c(.25, .5, .75)\n\n<span style=\"color: #008080;\">#calculate quantiles by grouping variable<\/span>\ndf %&gt;%\n  group_by(team) %&gt;%\n  summarize(quant25 = quantile(points, probs = q[1]), \n            quant50 = quantile(points, probs = q[2]),\n            quant75 = quantile(points, probs = q[3]))\n\n# A tibble: 3 x 4\n  team quant25 quant50 quant75\n           \n1 to 2.5 3 3.25\n2 B 6.5 7 7.25\n3 C 13 14 16   \n<\/strong><\/span><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki pokazuj\u0105, jak u\u017cywa\u0107 funkcji <strong>quantile()<\/strong> do obliczania innych popularnych warto\u015bci kwantyli:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pl\/percentyle-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 percentyle w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/decyle-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 decyle w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/kwartyle-w-r\/\" target=\"_blank\" rel=\"noopener\">Jak obliczy\u0107 kwartyle w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>W statystyce kwantyle to warto\u015bci dziel\u0105ce sklasyfikowany zbi\u00f3r danych na r\u00f3wne grupy. Funkcji quantile() w R mo\u017cna u\u017cy\u0107 do obliczenia przyk\u0142adowych kwantyli zbioru danych. Ta funkcja wykorzystuje nast\u0119puj\u0105c\u0105 podstawow\u0105 sk\u0142adni\u0119: kwantyl(x, probs = seq(0, 1, 0,25), na.rm = FALSE) Z\u0142oto: x : nazwa wektora probs : Numeryczny wektor prawdopodobie\u0144stw na.rm : czy usun\u0105\u0107 warto\u015bci NA [&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-1959","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 korzysta\u0107 z funkcji quantile() w R - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji quantile() w j\u0119zyku R do obliczania kwantyli zbioru danych, 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\/funkcja-kwantylowa-w-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak korzysta\u0107 z funkcji quantile() w R - Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji quantile() w j\u0119zyku R do obliczania kwantyli zbioru danych, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T07:21:08+00:00\" \/>\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\/funkcja-kwantylowa-w-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/\",\"name\":\"Jak korzysta\u0107 z funkcji quantile() w R - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-24T07:21:08+00:00\",\"dateModified\":\"2023-07-24T07:21:08+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak u\u017cywa\u0107 funkcji quantile() w j\u0119zyku R do obliczania kwantyli zbioru danych, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/funkcja-kwantylowa-w-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak korzysta\u0107 z funkcji quantile() w r\"}]},{\"@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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