{"id":956,"date":"2023-07-28T04:39:16","date_gmt":"2023-07-28T04:39:16","guid":{"rendered":"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/"},"modified":"2023-07-28T04:39:16","modified_gmt":"2023-07-28T04:39:16","slug":"maksymalna-wartosc-na-grupe-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/","title":{"rendered":"Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w r"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Cz\u0119sto mo\u017cesz chcie\u0107 znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 ka\u017cdej grupy w ramce danych w R. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107, korzystaj\u0105c z funkcji pakietu <a href=\"https:\/\/dplyr.tidyverse.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">dplyr<\/a> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">W tym samouczku wyja\u015bniono, jak to zrobi\u0107, korzystaj\u0105c z nast\u0119puj\u0105cej ramki danych:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame<\/span>\ndf &lt;- data.frame(team = c('A', 'A', 'A', 'B', 'B', 'B', 'B'),\n                 position = c('G', 'F', 'F', 'G', 'G', 'G', 'F'),\n                 points = c(12, 15, 19, 22, 34, 34, 39))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  team position points\n1 AG 12\n2 AF15\n3 FY 19\n4 BG 22\n5 BG 34\n6 BG 34\n7 BF 39\n<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Znajd\u017a maksymaln\u0105 warto\u015b\u0107 na grup\u0119<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na zesp\u00f3\u0142 na pozycj\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">library(dplyr)<\/span>\n\n#find max value by team and position<\/span>\ndf %&gt;%\n  <span style=\"color: #3366ff;\">group_by<\/span> (team, position) %&gt;%\n  <span style=\"color: #3366ff;\">summarize<\/span> (max = max(points, na.rm= <span style=\"color: #008000;\">TRUE<\/span> ))\n\n# A tibble: 4 x 3\n# Groups: team [?]\n  team position max\n      \n1AF 19.0\n2 AG 12.0\n3 BF 39.0\n4 BG 34.0<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Zwr\u00f3\u0107 wiersze zawieraj\u0105ce maksymaln\u0105 warto\u015b\u0107 na grup\u0119<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak zwr\u00f3ci\u0107 wiersze zawieraj\u0105ce maksymaln\u0105 warto\u015b\u0107 na zesp\u00f3\u0142 i na pozycj\u0119:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">library(dplyr)<\/span>\n\n#find rows that contain max points by team and position<\/span>\ndf %&gt;%\n  <span style=\"color: #3366ff;\">group_by<\/span> (team, position) %&gt;%\n  <span style=\"color: #3366ff;\">filter<\/span> (points == max(points, na.rm= <span style=\"color: #008000;\">TRUE<\/span> ))\n\n# A tibble: 5 x 3\n# Groups: team, position [4]\n  team position points\n       \n1 AG 12.0\n2AF 19.0\n3 BG 34.0\n4 BG 34.0\n5BF 39.0<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 3: Zwr\u00f3\u0107 pojedynczy wiersz zawieraj\u0105cy maksymaln\u0105 warto\u015b\u0107 na grup\u0119<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">W poprzednim przyk\u0142adzie by\u0142o dw\u00f3ch graczy, kt\u00f3rzy mieli maksymaln\u0105 liczb\u0119 punkt\u00f3w w dru\u017cynie A i obaj byli na pozycji G. Je\u015bli chcesz zwr\u00f3ci\u0107 do grupy tylko pierwszego gracza z maksymaln\u0105 warto\u015bci\u0105, mo\u017cesz u\u017cy\u0107 <strong>wycinka ( ) funkcja.<\/strong> dzia\u0142a\u0107 w nast\u0119puj\u0105cy spos\u00f3b:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\">library(dplyr)<\/span>\n\n#find rows that contain max points by team and position<\/span>\ndf %&gt;%\n  <span style=\"color: #3366ff;\">group_by<\/span> (team, position) %&gt;%\n  <span style=\"color: #3366ff;\">slice<\/span> (which.max(points))\n\n# A tibble: 4 x 3\n# Groups: team, position [4]\n  team position points\n       \n1AF 19.0\n2 AG 12.0\n3 BF 39.0\n4 BG 34.0<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h3>\n<p> <a href=\"https:\/\/statorials.org\/pl\/dane-dotyczace-wznowienia-grupy-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Kompletny przewodnik: jak grupowa\u0107 i podsumowywa\u0107 dane w R<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/filtruj-wiersze-r\/\" target=\"_blank\" rel=\"noopener noreferrer\">Jak filtrowa\u0107 wiersze w R<\/a><br \/> <a href=\"https:\/\/statorials.org\" target=\"_blank\" rel=\"noopener noreferrer\">Jak usun\u0105\u0107 zduplikowane linie w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cz\u0119sto mo\u017cesz chcie\u0107 znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 ka\u017cdej grupy w ramce danych w R. Na szcz\u0119\u015bcie mo\u017cna to \u0142atwo zrobi\u0107, korzystaj\u0105c z funkcji pakietu dplyr . W tym samouczku wyja\u015bniono, jak to zrobi\u0107, korzystaj\u0105c z nast\u0119puj\u0105cej ramki danych: #create data frame df &lt;- data.frame(team = c(&#8217;A&#8217;, 'A&#8217;, 'A&#8217;, 'B&#8217;, 'B&#8217;, 'B&#8217;, 'B&#8217;), position = c(&#8217;G&#8217;, 'F&#8217;, [&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-956","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 znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w R - Statology<\/title>\n<meta name=\"description\" content=\"Proste wyja\u015bnienie, jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w ramce danych w R.\" \/>\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\/maksymalna-wartosc-na-grupe-r\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w R - Statology\" \/>\n<meta property=\"og:description\" content=\"Proste wyja\u015bnienie, jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w ramce danych w R.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-28T04:39:16+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\/maksymalna-wartosc-na-grupe-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/\",\"name\":\"Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w R - Statology\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-28T04:39:16+00:00\",\"dateModified\":\"2023-07-28T04:39:16+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"Proste wyja\u015bnienie, jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 w ramce danych w R.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/maksymalna-wartosc-na-grupe-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak znale\u017a\u0107 maksymaln\u0105 warto\u015b\u0107 na grup\u0119 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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