{"id":4279,"date":"2023-07-12T07:54:28","date_gmt":"2023-07-12T07:54:28","guid":{"rendered":"https:\/\/statorials.org\/pl\/dplyr-okragly\/"},"modified":"2023-07-12T07:54:28","modified_gmt":"2023-07-12T07:54:28","slug":"dplyr-okragly","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/dplyr-okragly\/","title":{"rendered":"Jak zaokr\u0105gli\u0107 warto\u015bci w okre\u015blonych kolumnach za pomoc\u0105 dplyr"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod do zaokr\u0105glenia warto\u015bci w okre\u015blonych kolumnach ramki danych przy u\u017cyciu pakietu <strong>dplyr<\/strong> w R:<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Metoda 1: Zaokr\u0105glanie warto\u015bci w okre\u015blonych kolumnach<\/strong><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (dplyr)<\/span>\n\n#round values in 'sales' and 'returns' columns to 2 decimal places \n<\/span>df_new &lt;- df %&gt;% mutate(across(c(' <span style=\"color: #ff0000;\">sales<\/span> ', ' <span style=\"color: #ff0000;\">returns<\/span> '), round, <span style=\"color: #008000;\">2<\/span> ))\n<\/strong><\/pre>\n<p> <strong><span style=\"color: #000000;\">Metoda 2: Zaokr\u0105glij warto\u015bci we wszystkich kolumnach liczbowych<\/span><\/strong><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (dplyr)<\/span>\n\n#round values in all numeric columns to 2 decimal places\n<\/span>df_new &lt;- df %&gt;% mutate(across(where(is. <span style=\"color: #3366ff;\">numeric<\/span> ), round, <span style=\"color: #008000;\">2<\/span> ))<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce wykorzysta\u0107 ka\u017cd\u0105 metod\u0119 z nast\u0119puj\u0105c\u0105 ramk\u0105 danych w R:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\">#create data frame\n<\/span>df &lt;- data. <span style=\"color: #3366ff;\">frame<\/span> (store=c('A', 'A', 'A', 'B', 'B', 'C', 'C', 'C'),\n                 sales=c(4.352, 6.5543, 7.5423, 9.22111, 4.332, 9.55, 8.0094, 7.2),\n                 returns=c(1.2324, 2.6654, 3.442, 6.545, 8.11, 8.004, 7.545, 6.0),\n                 promos=c(12.11, 14.455, 10.277, 23.51, 20.099, 29.343, 30.1, 45.6))\n\n<span style=\"color: #008080;\">#view data frame\n<\/span>df\n\n  store sales returns promos\n1 A 4.35200 1.2324 12.110\n2 A 6.55430 2.6654 14.455\n3 A 7.54230 3.4420 10.277\n4 B 9.22111 6.5450 23.510\n5 B 4.33200 8.1100 20.099\n6 C 9.55000 8.0040 29.343\n7 C 8.00940 7.5450 30.100\n8 C 7.20000 6.0000 45.600\n<\/strong><\/pre>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 1: Zaokr\u0105glij warto\u015bci w okre\u015blonych kolumnach za pomoc\u0105 dplyr<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje jak zaokr\u0105gli\u0107 warto\u015bci w kolumnach <strong>Sprzeda\u017c<\/strong> i <strong>Zwroty<\/strong> do 2 miejsc po przecinku:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (dplyr)<\/span>\n\n#round values in 'sales' and 'returns' columns to 2 decimal places \n<\/span>df_new &lt;- df %&gt;% mutate(across(c(' <span style=\"color: #ff0000;\">sales<\/span> ', ' <span style=\"color: #ff0000;\">returns<\/span> '), round, <span style=\"color: #008000;\">2<\/span> ))\n\n<span style=\"color: #008080;\">#view updated data frame<\/span>\ndf_new\n\n  store sales returns promos\n1 A 4.35 1.23 12.110\n2 A 6.55 2.67 14.455\n3 A 7.54 3.44 10.277\n4 B 9.22 6.54 23.510\n5 B 4.33 8.11 20.099\n6C 9.55 8.00 29.343\n7 C 8.01 7.54 30.100\n8 C 7.20 6.00 45,600\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce warto\u015bci w kolumnach <strong>Sprzeda\u017c<\/strong> i <strong>Zwroty<\/strong> s\u0105 zaokr\u0105glane do 2 miejsc po przecinku, natomiast pozosta\u0142e kolumny pozostaj\u0105 niezmienione.<\/span><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Przyk\u0142ad 2: Zaokr\u0105glij warto\u015bci we wszystkich kolumnach liczbowych za pomoc\u0105 dplyr<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017cszy kod pokazuje, jak zaokr\u0105gli\u0107 warto\u015bci wszystkich kolumn liczbowych do 2 miejsc po przecinku:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong><span style=\"color: #008080;\"><span style=\"color: #000000;\"><span style=\"color: #008000;\">library<\/span> (dplyr)<\/span>\n\n#round values in all numeric columns 2 decimal places \n<\/span>df_new &lt;- df %&gt;% mutate(across(where(is. <span style=\"color: #3366ff;\">numeric<\/span> ), round, <span style=\"color: #008000;\">2<\/span> ))\n\n<span style=\"color: #008080;\">#view updated data frame<\/span>\ndf_new\n\n  store sales returns promos\n1 A 4.35 1.23 12.11\n2 A 6.55 2.67 14.46\n3 A 7.54 3.44 10.28\n4 B 9.22 6.54 23.51\n5 B 4.33 8.11 20.10\n6C 9.55 8.00 29.34\n7 C 8.01 7.54 30.10\n8 C 7.20 6.00 45.60\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Nale\u017cy pami\u0119ta\u0107, \u017ce warto\u015bci w trzech kolumnach numerycznych w ramce danych zosta\u0142y zaokr\u0105glone do 2 miejsc po przecinku.<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Powi\u0105zane:<\/strong> <a href=\"https:\/\/statorials.org\/pl\/dplyr-przez\/\" target=\"_blank\" rel=\"noopener\">Jak u\u017cywa\u0107 funkcjicross() w dplyr<\/a><\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Dodatkowe zasoby<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe zadania w dplyr:<\/span><\/p>\n<p><a href=\"https:\/\/statorials.org\/pl\/dplyr-wyciszenie,-jesli-zawiera\/\" target=\"_blank\" rel=\"noopener\">dplyr: Jak mutowa\u0107 zmienn\u0105, je\u015bli kolumna zawiera ci\u0105g znak\u00f3w<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/czynnik-mutacji-dplyr\/\" target=\"_blank\" rel=\"noopener\">dplyr: Jak zmieni\u0107 poziomy wsp\u00f3\u0142czynnik\u00f3w za pomoc\u0105 mutate()<\/a><br \/> <a href=\"https:\/\/statorials.org\/pl\/dplyr-suma-w-wielu-kolumnach\/\" target=\"_blank\" rel=\"noopener\">dplyr: Jak doda\u0107 wiele kolumn<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cych metod do zaokr\u0105glenia warto\u015bci w okre\u015blonych kolumnach ramki danych przy u\u017cyciu pakietu dplyr w R: Metoda 1: Zaokr\u0105glanie warto\u015bci w okre\u015blonych kolumnach library (dplyr) #round values in 'sales&#8217; and 'returns&#8217; columns to 2 decimal places df_new &lt;- df %&gt;% mutate(across(c(&#8217; sales &#8217;, &#8217; returns &#8217;), round, 2 )) Metoda 2: Zaokr\u0105glij warto\u015bci [&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-4279","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 zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, 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\/dplyr-okragly\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/dplyr-okragly\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-12T07:54:28+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\/dplyr-okragly\/\",\"url\":\"https:\/\/statorials.org\/pl\/dplyr-okragly\/\",\"name\":\"Jak zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-12T07:54:28+00:00\",\"dateModified\":\"2023-07-12T07:54:28+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-okragly\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/dplyr-okragly\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-okragly\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak zaokr\u0105gli\u0107 warto\u015bci w okre\u015blonych kolumnach za pomoc\u0105 dplyr\"}]},{\"@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. Dzi\u0119ki bogatemu do\u015bwiadczeniu i wiedzy specjalistycznej w dziedzinie statystyki ch\u0119tnie dziel\u0119 si\u0119 swoj\u0105 wiedz\u0105, aby wzmocni\u0107 pozycj\u0119 uczni\u00f3w za po\u015brednictwem Statorials. Wiedzie\u0107 wi\u0119cej\",\"sameAs\":[\"https:\/\/statorials.org\/pl\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Jak zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials","description":"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/statorials.org\/pl\/dplyr-okragly\/","og_locale":"pl_PL","og_type":"article","og_title":"Jak zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials","og_description":"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.","og_url":"https:\/\/statorials.org\/pl\/dplyr-okragly\/","og_site_name":"Statorials","article_published_time":"2023-07-12T07:54:28+00:00","author":"Benjamin Anderson","twitter_card":"summary_large_image","twitter_misc":{"Napisane przez":"Benjamin Anderson","Szacowany czas czytania":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/statorials.org\/pl\/dplyr-okragly\/","url":"https:\/\/statorials.org\/pl\/dplyr-okragly\/","name":"Jak zaokr\u0105gla\u0107 warto\u015bci w konkretnych kolumnach za pomoc\u0105 dplyr - Statorials","isPartOf":{"@id":"https:\/\/statorials.org\/pl\/#website"},"datePublished":"2023-07-12T07:54:28+00:00","dateModified":"2023-07-12T07:54:28+00:00","author":{"@id":"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965"},"description":"W tym samouczku wyja\u015bniono, jak zaokr\u0105gla\u0107 warto\u015bci w okre\u015blonych kolumnach ramki danych za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.","breadcrumb":{"@id":"https:\/\/statorials.org\/pl\/dplyr-okragly\/#breadcrumb"},"inLanguage":"pl-PL","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pl\/dplyr-okragly\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pl\/dplyr-okragly\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom","item":"https:\/\/statorials.org\/pl\/"},{"@type":"ListItem","position":2,"name":"Jak zaokr\u0105gli\u0107 warto\u015bci w okre\u015blonych kolumnach za pomoc\u0105 dplyr"}]},{"@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. Dzi\u0119ki bogatemu do\u015bwiadczeniu i wiedzy specjalistycznej w dziedzinie statystyki ch\u0119tnie dziel\u0119 si\u0119 swoj\u0105 wiedz\u0105, aby wzmocni\u0107 pozycj\u0119 uczni\u00f3w za po\u015brednictwem Statorials. Wiedzie\u0107 wi\u0119cej","sameAs":["https:\/\/statorials.org\/pl"]}]}},"yoast_meta":{"yoast_wpseo_title":"","yoast_wpseo_metadesc":"","yoast_wpseo_canonical":""},"_links":{"self":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts\/4279","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/comments?post=4279"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts\/4279\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/media?parent=4279"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/categories?post=4279"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/tags?post=4279"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}