{"id":1776,"date":"2023-07-25T00:53:50","date_gmt":"2023-07-25T00:53:50","guid":{"rendered":"https:\/\/statorials.org\/pl\/usun-linie-w-r\/"},"modified":"2023-07-25T00:53:50","modified_gmt":"2023-07-25T00:53:50","slug":"usun-linie-w-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/usun-linie-w-r\/","title":{"rendered":"Jak usun\u0105\u0107 wiersze w r (z przyk\u0142adami)"},"content":{"rendered":"

<\/p>\n

\n

Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby usun\u0105\u0107 okre\u015blone numery linii w R:<\/span><\/p>\n

 #remove 4th row<\/span>\nnew_df <- df[-c(4), ]\n\n#remove 2nd through 4th row<\/span>\nnew_df <- df[-c(2:4), ]\n\n#remove 1st, 2nd, and 4th row<\/span>\nnew_df <- df[-c(1, 2, 4), ]\n<\/strong><\/pre>\n
 Aby usun\u0105\u0107 wiersze, kt\u00f3re nie spe\u0142niaj\u0105 okre\u015blonych warunk\u00f3w, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni:<\/span><\/p>\n
 #only keep rows where col1 value is less than 10 and col2 value is less than 6<\/span>\nnew_df <- subset(df, col1 <<\/span> 10 &<\/span> col2 <<\/span> 6)\n<\/strong><\/pre>\n
 Mo\u017cesz tak\u017ce u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby usun\u0105\u0107 wiersze z warto\u015bci\u0105 NA w dowolnej kolumnie:<\/span><\/p>\n
 #remove rows with NA value in any column<\/span>\nnew_df <- na. omitted<\/span> (df)<\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce wykorzysta\u0107 ka\u017cd\u0105 z tych funkcji.<\/span><\/p>\n
 Przyk\u0142ad 1: Usu\u0144 wiersze wed\u0142ug numeru<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 wiersze wed\u0142ug okre\u015blonego numeru wiersza w R:<\/span><\/p>\n
 #create data frame\ndf <- data. frame<\/span> (player=c('A', 'B', 'C', 'D', 'E'),\n                 pts=c(17, 12, 8, 9, 25),\n                 rebs=c(3, 3, 6, 5, 8),\n                 blocks=c(1, 1, 2, 4, NA))<\/span>\n\n#view data frame\ndf<\/span>\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 8 6 2\n4 D 9 5 4\n5 E 25 8 NA\n<\/span>\n#remove 4th row<\/span>\ndf[-c(4), ]\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 8 6 2\n5 E 25 8 NA\n\n#remove 2nd through 4th row<\/span>\ndf[-c(2:4), ]\n\n  player pts rebs blocks\n1 to 17 3 1\n5 E 25 8 NA\n\n#remove 1st, 2nd, and 4th row<\/span>\ndf[-c(1, 2, 4), ]\n\n  player pts rebs blocks\n3 C 8 6 2\n5 E 25 8 NA\n<\/strong><\/pre>\n
 Przyk\u0142ad 2: Usu\u0144 wiersze wed\u0142ug warunku<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 wiersze, kt\u00f3re nie spe\u0142niaj\u0105 okre\u015blonego warunku:<\/span><\/p>\n
 #create data frame\ndf <- data. frame<\/span> (player=c('A', 'B', 'C', 'D', 'E'),\n                 pts=c(17, 12, 8, 9, 25),\n                 rebs=c(3, 3, 6, 5, 8),\n                 blocks=c(1, 1, 2, 4, NA))<\/span>\n\n#view data frame\ndf<\/span>\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 8 6 2\n4 D 9 5 4\n5 E 25 8 NA\n<\/span>\n#only keep rows where pts is less than 10 and rebs is less than 6<\/span>\nsubset(df, pts <<\/span> 10 &<\/span> rebs <<\/span> 6)\n\n  player pts rebs blocks\n4 D 9 5 4\n<\/strong><\/pre>\n
 Przyk\u0142ad 3: Usu\u0144 wiersze z warto\u015bciami NA<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak usun\u0105\u0107 wiersze z warto\u015bci\u0105 NA w dowolnym wierszu:<\/span><\/p>\n
 #create data frame\ndf <- data. frame<\/span> (player=c('A', 'B', 'C', 'D', 'E'),\n                 pts=c(17, 12, 8, 9, 25),\n                 rebs=c(3, 3, 6, 5, 8),\n                 blocks=c(1, 1, 2, 4, NA))<\/span>\n\n#view data frame\ndf<\/span>\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 8 6 2\n4 D 9 5 4\n5 E 25 8 NA\n<\/span>\n#remove rows with NA value in any row:<\/span>\nn \/ A. omitted<\/span> (df)\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 8 6 2\n4 D 9 5 4\n<\/strong><\/pre>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Jak doda\u0107 wiersze do ramki danych w R<\/a>
 Jak usun\u0105\u0107 zduplikowane linie w R<\/a>
 Jak sumowa\u0107 okre\u015blone wiersze w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby usun\u0105\u0107 okre\u015blone numery linii w R: #remove 4th row new_df <- df[-c(4), ] #remove 2nd through 4th row new_df <- df[-c(2:4), ] #remove 1st, 2nd, and 4th row new_df <- df[-c(1, 2, 4), ] Aby usun\u0105\u0107 wiersze, kt\u00f3re nie spe\u0142niaj\u0105 okre\u015blonych warunk\u00f3w, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni: #only keep rows where […]<\/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-1776","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak usun\u0105\u0107 wiersze w R (z przyk\u0142adami)<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak usun\u0105\u0107 wiersze z ramki danych w j\u0119zyku R, 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\/usun-linie-w-r\/\" \/>\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 w R (z przyk\u0142adami)\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak usun\u0105\u0107 wiersze z ramki danych w j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/usun-linie-w-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T00:53:50+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\/usun-linie-w-r\/\",\"url\":\"https:\/\/statorials.org\/pl\/usun-linie-w-r\/\",\"name\":\"Jak usun\u0105\u0107 wiersze w R (z przyk\u0142adami)\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-25T00:53:50+00:00\",\"dateModified\":\"2023-07-25T00:53:50+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 j\u0119zyku R, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/usun-linie-w-r\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/usun-linie-w-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/usun-linie-w-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak usun\u0105\u0107 wiersze w r (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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