{"id":2118,"date":"2023-07-23T14:55:03","date_gmt":"2023-07-23T14:55:03","guid":{"rendered":"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/"},"modified":"2023-07-23T14:55:03","modified_gmt":"2023-07-23T14:55:03","slug":"dplyr-usun-linie","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/","title":{"rendered":"Jak usun\u0105\u0107 wiersze za pomoc\u0105 dplyr (z przyk\u0142adami)"},"content":{"rendered":"

<\/p>\n

\n

Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej podstawowej sk\u0142adni, aby usun\u0105\u0107 wiersze z ramki danych w R za pomoc\u0105 dplyr:<\/span><\/p>\n

1. Usu\u0144 dowolny wiersz za pomoc\u0105 NA<\/strong><\/span><\/p>\n

 df %>%\n  n \/ A. omit<\/span> ()<\/strong><\/span><\/pre>\n
 2. Usu\u0144 dowolny wiersz z NA w okre\u015blonej kolumnie<\/strong><\/span><\/p>\n
 df %>%<\/span><\/strong>\nfilter( !<\/span> is. na<\/span> (column_name))<\/span><\/strong><\/pre>\n
 3. Usu\u0144 duplikaty<\/strong><\/span><\/p>\n
 df %>%\n  distinct()\n<\/strong><\/span><\/pre>\n
 4. Usu\u0144 wiersze wed\u0142ug pozycji indeksu<\/strong><\/span><\/p>\n
 df %>%<\/strong><\/span>\nfilter( !<\/span> row_number() %in%<\/span> c(1, 2, 4))<\/strong><\/span><\/pre>\n
 5. Usu\u0144 wiersze na podstawie warunku<\/strong><\/span><\/p>\n
 df %>%\n  filter(column1 ==<\/span> ' A<\/span> ' | column2 ><\/span> 8)<\/strong><\/span><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce zastosowa\u0107 ka\u017cd\u0105 z tych metod z nast\u0119puj\u0105c\u0105 ramk\u0105 danych:<\/span><\/p>\n
 library<\/span> (dplyr)<\/span>\n\n#create data frame\n<\/span>df <- data. frame<\/span> (team=c('A', 'A', 'B', 'B', 'C', 'C'),\n                 points=c(4, NA, 7, 5, 9, 9),\n                 assists=c(1, 3, 5, NA, 2, 2))\n\n#view data frame\n<\/span>df\n\n  team points assists\n1 to 4 1\n2 A NA 3\n3 B 7 5\n4 B 5 NA\n5 C 9 2\n6 C 9 2\n<\/strong><\/span><\/pre>\n
 Przyk\u0142ad 1: Usu\u0144 dowolny wiersz za pomoc\u0105 NA<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje jak usun\u0105\u0107 z ramki danych dowolne wiersze zawieraj\u0105ce warto\u015bci NA:<\/span><\/p>\n
 #remove any row with NA<\/span>\ndf %>%\n  n \/ A. omit<\/span> ()\n\n  team points assists\n1 to 4 1\n3 B 7 5\n5 C 9 2\n6 C 9 2<\/strong><\/pre>\n
 Przyk\u0142ad 2: Usu\u0144 dowolny wiersz z NA w okre\u015blonych kolumnach<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 dowolny wiersz zawieraj\u0105cy warto\u015bci NA w okre\u015blonej kolumnie:<\/span><\/p>\n
 #remove any row with NA in 'points' column:<\/span>\ndf %>%\n  filter( !<\/span> is. na<\/span> (dots))\n\n  team points assists\n1 to 4 1\n2 B 7 5\n3 B 5 NA\n4 C 9 2\n5 C 9 2<\/strong><\/pre>\n
 Przyk\u0142ad 3: Usu\u0144 zduplikowane wiersze<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 zduplikowane wiersze:<\/span><\/p>\n
 #remove duplicate rows<\/span>\ndf %>%\n  distinct()\n\n  team points assists\n1 to 4 1\n2 A NA 3\n3 B 7 5\n4 B 5 NA\n5 C 9 2<\/strong><\/pre>\n
 Przyk\u0142ad 4: Usu\u0144 wiersze wed\u0142ug pozycji indeksu<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 wiersze na podstawie pozycji indeksu:<\/span><\/p>\n
 #remove rows 1, 2, and 4<\/span>\ndf %>%\n<\/span>filter( !<\/span> row_number() %in%<\/span> c(1, 2, 4))<\/span>\n\n  team points assists\n1 B 7 5\n2 C 9 2\n3 C 9 2<\/strong><\/pre>\n
 Przyk\u0142ad 5: Usu\u0144 wiersze na podstawie warunku<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 wiersze na podstawie okre\u015blonych warunk\u00f3w:<\/span><\/p>\n
 #only keep rows where team is equal to 'A' or points is greater than 8<\/span>\ndf %>%\n  filter(column1 ==<\/span> ' A<\/span> ' | column2 ><\/span> 8)<\/span>\n\n  team points assists\n1 to 4 1\n2 A NA 3\n3 C 9 2\n4 C 9 2<\/strong><\/pre>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe funkcje w dplyr:<\/span><\/p>\n
 Jak wybra\u0107 kolumny wed\u0142ug indeksu za pomoc\u0105 dplyr<\/a>
Jak sortowa\u0107 zmienne wed\u0142ug grup za pomoc\u0105 dplyr<\/a>
 Jak zamieni\u0107 NA na Zero w dplyr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej podstawowej sk\u0142adni, aby usun\u0105\u0107 wiersze z ramki danych w R za pomoc\u0105 dplyr: 1. Usu\u0144 dowolny wiersz za pomoc\u0105 NA df %>% n \/ A. omit () 2. Usu\u0144 dowolny wiersz z NA w okre\u015blonej kolumnie df %>% filter( ! is. na (column_name)) 3. Usu\u0144 duplikaty df %>% distinct() 4. Usu\u0144 wiersze […]<\/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-2118","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak usun\u0105\u0107 wiersze za pomoc\u0105 dplyr (z przyk\u0142adami) \u2013 Statorials<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak usun\u0105\u0107 wiersze z ramki danych w R 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-usun-linie\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak usun\u0105\u0107 wiersze za pomoc\u0105 dplyr (z przyk\u0142adami) \u2013 Statorials\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak usun\u0105\u0107 wiersze z ramki danych w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T14:55:03+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-usun-linie\/\",\"url\":\"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/\",\"name\":\"Jak usun\u0105\u0107 wiersze za pomoc\u0105 dplyr (z przyk\u0142adami) \u2013 Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-23T14:55:03+00:00\",\"dateModified\":\"2023-07-23T14:55:03+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak usun\u0105\u0107 wiersze z ramki danych w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-usun-linie\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak usun\u0105\u0107 wiersze za pomoc\u0105 dplyr (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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