{"id":2070,"date":"2023-07-23T20:19:59","date_gmt":"2023-07-23T20:19:59","guid":{"rendered":"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/"},"modified":"2023-07-23T20:19:59","modified_gmt":"2023-07-23T20:19:59","slug":"r-kolumna-sumy-z-warunkiem","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/","title":{"rendered":"Jak sumowa\u0107 kolumny na podstawie warunku w r"},"content":{"rendered":"

<\/p>\n

\n

Do sumowania kolumn na podstawie warunku w R mo\u017cna u\u017cy\u0107 nast\u0119puj\u0105cej podstawowej sk\u0142adni:<\/span><\/p>\n

 #sum values in column 3 where col1 is equal to 'A'<\/span>\nsum(df[ which<\/span> (df$col1==' A<\/span> '), 3])\n<\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak zastosowa\u0107 t\u0119 sk\u0142adni\u0119 w praktyce z nast\u0119puj\u0105c\u0105 ramk\u0105 danych:<\/span><\/p>\n
 #create data frame\n<\/span>df <- data. frame<\/span> (conference = c('East', 'East', 'East', 'West', 'West', 'East'),\n                 team = c('A', 'A', 'A', 'B', 'B', 'C'),\n                 points = c(11, 8, 10, 6, 6, 5),\n                 rebounds = c(7, 7, 6, 9, 12, 8))\n\n#view data frame\n<\/span>df\n\n  conference team points rebounds\n1 East A 11 7\n2 East A 8 7\n3 East A 10 6\n4 West B 6 9\n5 West B 6 12\n6 East C 5 8\n<\/strong><\/pre>\n
 Przyk\u0142ad 1: Dodaj kolumn\u0119 na podstawie warunku<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak znale\u017a\u0107 sum\u0119 kolumn punkt\u00f3w dla wierszy, w kt\u00f3rych dru\u017cyna jest r\u00f3wna \u201eA\u201d:<\/span><\/p>\n
 #sum values in column 3 (points column) where team is equal to 'A'<\/span>\nsum(df[ which<\/span> (df$team==' A<\/span> '), 3])\n\n[1] 29<\/strong><\/pre>\n
 Poni\u017cszy kod pokazuje, jak znale\u017a\u0107 sum\u0119 kolumny odbi\u0107 dla wierszy, w kt\u00f3rych liczba punkt\u00f3w jest wi\u0119ksza ni\u017c 9:<\/span><\/p>\n
 #sum values in column 4 (rebounds column) where points is greater than 9<\/span>\nsum(df[ which<\/span> (df$points > 9), 4])\n\n[1] 13<\/strong><\/pre>\n
 Przyk\u0142ad 2: Dodaj kolumn\u0119 na podstawie wielu warunk\u00f3w<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak znale\u017a\u0107 sum\u0119 kolumny punkt\u00f3w dla wierszy, w kt\u00f3rych zesp\u00f3\u0142 r\u00f3wna si\u0119 \u201eA\u201d , a<\/em> konferencja r\u00f3wna si\u0119 \u201eWsch\u00f3d\u201d:<\/span><\/p>\n
 #sum values in column 3 (points column) where team is 'A' and conference is 'East'<\/span>\nsum(df[ which<\/span> (df$team==' A<\/span> ' & df$conference==' East<\/span> '), 3])\n\n[1] 29<\/strong><\/pre>\n
 Zauwa\u017c, \u017ce operator &<\/strong> oznacza \u201ei\u201d w R.<\/span><\/p>\n
 Przyk\u0142ad 3: Dodaj kolumn\u0119 na podstawie jednego z kilku warunk\u00f3w<\/strong><\/h3>\n
 Poni\u017cszy kod pokazuje, jak znale\u017a\u0107 sum\u0119 kolumn punkt\u00f3w dla wierszy, w kt\u00f3rych dru\u017cyna jest r\u00f3wna \u201eA\u201d lub<\/em> \u201eC\u201d:<\/span><\/p>\n
 #sum values in column 3 (points column) where team is 'A' or<\/em> 'C'\nsum(df[ which<\/span> (df$team == ' A<\/span> ' | df$team ==' C<\/span> '), 3])\n\n[1] 34<\/span>\n<\/span><\/strong><\/pre>\n
 Zauwa\u017c, \u017ce |<\/strong> Operator oznacza \u201elub\u201d w R.<\/span><\/p>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Poni\u017csze samouczki wyja\u015bniaj\u0105, jak wykonywa\u0107 inne typowe funkcje w R:<\/span><\/p>\n
 Jak sumowa\u0107 okre\u015blone kolumny w R<\/a>
 Jak sumowa\u0107 okre\u015blone wiersze w R<\/a>
 Jak obliczy\u0107 sum\u0119 wed\u0142ug grupy w R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Do sumowania kolumn na podstawie warunku w R mo\u017cna u\u017cy\u0107 nast\u0119puj\u0105cej podstawowej sk\u0142adni: #sum values in column 3 where col1 is equal to 'A’ sum(df[ which (df$col1==’ A ’), 3]) Poni\u017csze przyk\u0142ady pokazuj\u0105, jak zastosowa\u0107 t\u0119 sk\u0142adni\u0119 w praktyce z nast\u0119puj\u0105c\u0105 ramk\u0105 danych: #create data frame df <- data. frame (conference = c(’East’, 'East’, 'East’, […]<\/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-2070","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak doda\u0107 kolumny na podstawie warunku w R - Statology<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 kolumny spe\u0142niaj\u0105ce okre\u015blone warunki w ramce danych w j\u0119zyku R, \u0142\u0105cznie z przyk\u0142adami.\" \/>\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\/r-kolumna-sumy-z-warunkiem\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak doda\u0107 kolumny na podstawie warunku w R - Statology\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak doda\u0107 kolumny spe\u0142niaj\u0105ce okre\u015blone warunki w ramce danych w j\u0119zyku R, \u0142\u0105cznie z przyk\u0142adami.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-23T20:19:59+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\/r-kolumna-sumy-z-warunkiem\/\",\"url\":\"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/\",\"name\":\"Jak doda\u0107 kolumny na podstawie warunku w R - Statology\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-23T20:19:59+00:00\",\"dateModified\":\"2023-07-23T20:19:59+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak doda\u0107 kolumny spe\u0142niaj\u0105ce okre\u015blone warunki w ramce danych w j\u0119zyku R, \u0142\u0105cznie z przyk\u0142adami.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/r-kolumna-sumy-z-warunkiem\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak sumowa\u0107 kolumny na podstawie warunku 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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