{"id":1778,"date":"2023-07-25T00:47:00","date_gmt":"2023-07-25T00:47:00","guid":{"rendered":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/"},"modified":"2023-07-25T00:47:00","modified_gmt":"2023-07-25T00:47:00","slug":"dplyr-zamien-na-na-zero","status":"publish","type":"post","link":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/","title":{"rendered":"Jak zamieni\u0107 na na zero w dplyr"},"content":{"rendered":"

<\/p>\n

\n

Mo\u017cesz u\u017cy\u0107 poni\u017cszej sk\u0142adni, aby zast\u0105pi\u0107 wszystkie warto\u015bci NA zerem w ramce danych za pomoc\u0105 pakietu dplyr<\/a> w R:<\/span><\/p>\n

 #replace all NA values with zero<\/span>\ndf <- df %>% replace(is. na<\/span> (.), 0)\n<\/strong><\/pre>\n
 Aby zast\u0105pi\u0107 warto\u015bci NA w okre\u015blonej kolumnie ramki danych, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni:<\/span><\/p>\n
 #replace NA values with zero in column named col1<\/em><\/span>\ndf <- df %>% mutate(col1 = ifelse(is. na<\/span> (col1), 0, col1))\n<\/strong><\/pre>\n
 Mo\u017cesz tak\u017ce u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni, aby zast\u0105pi\u0107 warto\u015b\u0107 NA w jednej z wielu kolumn w ramce danych:<\/span><\/p>\n
 #replace NA values with zero in columns col1<\/em> and col2<\/em><\/span>\ndf <- df %>% mutate(col1 = ifelse(is. na<\/span> (col1), 0, col1),\n                    col2 = ifelse(is. na<\/span> (col2), 0, col2))<\/strong><\/pre>\n
 Poni\u017csze przyk\u0142ady pokazuj\u0105, jak w praktyce wykorzysta\u0107 te funkcje z nast\u0119puj\u0105cym blokiem danych:<\/span><\/p>\n
 #create data frame<\/span>\ndf <- data. frame<\/span> (player=c('A', 'B', 'C', 'D', 'E'),\n                 pts=c(17, 12, NA, 9, 25),\n                 rebs=c(3, 3, NA, NA, 8),\n                 blocks=c(1, 1, 2, 4, NA))\n\n#view data frame<\/span>\ndf\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C NA NA 2\n4 D 9 NA 4\n5 E 25 8 NA\n<\/strong><\/pre>\n
 Przyk\u0142ad 1: Zamie\u0144 wszystkie warto\u015bci NA we wszystkich kolumnach<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje, jak zast\u0105pi\u0107 wszystkie warto\u015bci NA we wszystkich kolumnach ramki danych:<\/span><\/p>\n
 library<\/span> (dplyr)<\/span>\n\n<\/span>#replace all NA values with zero\n<\/span>df <- df %>% replace(is. na<\/span> (.), 0)\n\n#view data frame\n<\/span>df\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 0 0 2\n4 D 9 0 4\n5 E 25 8 0\n<\/strong><\/pre>\n
 Przyk\u0142ad 2: Zamie\u0144 warto\u015bci NA w okre\u015blonej kolumnie<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje jak zamieni\u0107 warto\u015bci NA w konkretnej kolumnie ramki danych:<\/span><\/p>\n
 library<\/span> (dplyr)<\/span>\n\n<\/span>#replace NA values with zero in rebs<\/em> column only\n<\/span>df <- df %>% mutate(rebs = ifelse(is. na<\/span> (rebs), 0, rebs))\n\n#view data frame\n<\/span>df\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C NA 0 2\n4 D 9 0 4\n5 E 25 8 NA<\/strong><\/pre>\n
 Przyk\u0142ad 3: Zamie\u0144 warto\u015bci NA w jednej z kilku kolumn<\/strong><\/span><\/h3>\n
 Poni\u017cszy kod pokazuje jak zamieni\u0107 warto\u015bci NA w jednej z wielu kolumn w ramce danych:<\/span><\/p>\n
 library<\/span> (dplyr)<\/span>\n\n<\/span>#replace NA values with zero in rebs<\/em> and pts<\/em> columns\n<\/span>df <- df %>% mutate(rebs = ifelse(is. na<\/span> (rebs), 0, rebs),\n                    pts = ifelse(is. na<\/span> (pts), 0, pts))\n\n#view data frame\n<\/span>df\n\n  player pts rebs blocks\n1 to 17 3 1\n2 B 12 3 1\n3 C 0 0 2\n4 D 9 0 4\n5 E 25 8 NA<\/strong><\/pre>\n
 Dodatkowe zasoby<\/strong><\/span><\/h3>\n
 Jak filtrowa\u0107 wiersze zawieraj\u0105ce okre\u015blony ci\u0105g za pomoc\u0105 dplyr<\/a>
 Jak obliczy\u0107 cz\u0119stotliwo\u015bci wzgl\u0119dne za pomoc\u0105 dplyr<\/a>
 Jak wybra\u0107 pierwszy wiersz wed\u0142ug grupy za pomoc\u0105 dplyr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Mo\u017cesz u\u017cy\u0107 poni\u017cszej sk\u0142adni, aby zast\u0105pi\u0107 wszystkie warto\u015bci NA zerem w ramce danych za pomoc\u0105 pakietu dplyr w R: #replace all NA values with zero df <- df %>% replace(is. na (.), 0) Aby zast\u0105pi\u0107 warto\u015bci NA w okre\u015blonej kolumnie ramki danych, mo\u017cesz u\u017cy\u0107 nast\u0119puj\u0105cej sk\u0142adni: #replace NA values with zero in column named col1 […]<\/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-1778","post","type-post","status-publish","format-standard","hentry","category-przewodnik"],"yoast_head":"\nJak zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia<\/title>\n<meta name=\"description\" content=\"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami 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-zamien-na-na-zero\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Jak zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia\" \/>\n<meta property=\"og:description\" content=\"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-25T00:47:00+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-zamien-na-na-zero\/\",\"url\":\"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/\",\"name\":\"Jak zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pl\/#website\"},\"datePublished\":\"2023-07-25T00:47:00+00:00\",\"dateModified\":\"2023-07-25T00:47:00+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965\"},\"description\":\"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/#breadcrumb\"},\"inLanguage\":\"pl-PL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Dom\",\"item\":\"https:\/\/statorials.org\/pl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Jak zamieni\u0107 na na zero w 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 zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia","description":"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami w R 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-zamien-na-na-zero\/","og_locale":"pl_PL","og_type":"article","og_title":"Jak zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia","og_description":"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.","og_url":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/","og_site_name":"Statorials","article_published_time":"2023-07-25T00:47:00+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-zamien-na-na-zero\/","url":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/","name":"Jak zast\u0105pi\u0107 NA zerem w dplyr \u2013 Statologia","isPartOf":{"@id":"https:\/\/statorials.org\/pl\/#website"},"datePublished":"2023-07-25T00:47:00+00:00","dateModified":"2023-07-25T00:47:00+00:00","author":{"@id":"https:\/\/statorials.org\/pl\/#\/schema\/person\/6484727a4612df3e69f016c3129c6965"},"description":"W tym samouczku wyja\u015bniono, jak zast\u0105pi\u0107 warto\u015bci NA zerami w R za pomoc\u0105 dplyr, podaj\u0105c kilka przyk\u0142ad\u00f3w.","breadcrumb":{"@id":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/#breadcrumb"},"inLanguage":"pl-PL","potentialAction":[{"@type":"ReadAction","target":["https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/statorials.org\/pl\/dplyr-zamien-na-na-zero\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Dom","item":"https:\/\/statorials.org\/pl\/"},{"@type":"ListItem","position":2,"name":"Jak zamieni\u0107 na na zero w 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\/1778","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=1778"}],"version-history":[{"count":0,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/posts\/1778\/revisions"}],"wp:attachment":[{"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/media?parent=1778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/categories?post=1778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/statorials.org\/pl\/wp-json\/wp\/v2\/tags?post=1778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}