{"id":1444,"date":"2023-07-26T09:11:23","date_gmt":"2023-07-26T09:11:23","guid":{"rendered":"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/"},"modified":"2023-07-26T09:11:23","modified_gmt":"2023-07-26T09:11:23","slug":"herschik-de-factorniveaus-in-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/","title":{"rendered":"Factorniveaus in r herschikken (met voorbeelden)"},"content":{"rendered":"

<\/p>\n

\n

Soms wil je misschien de niveaus van bepaalde factorvariabelen in R herschikken. Gelukkig is dit eenvoudig te doen met behulp van de volgende syntaxis:<\/span><\/p>\n

 factor_variable <- factor<\/span> (factor_variable, levels<\/span> =c(' this<\/span> ', ' that<\/span> ', ' those<\/span> ', ...))\n<\/strong><\/pre>\n
 Het volgende voorbeeld laat zien hoe u deze functie in de praktijk kunt gebruiken.<\/span><\/p>\n
 Voorbeeld: factorniveaus in R herschikken<\/strong><\/span><\/h3>\n
 Laten we eerst een dataframe maken met een factorvariabele en een numerieke variabele:<\/span><\/p>\n
 #create data frame<\/span>\ndf <- data. frame<\/span> (region= factor<\/span> (c('A', 'B', 'C', 'D', 'E')),\n                 sales=c(12, 18, 21, 14, 34))\n\n#view data frame\n<\/span>df\n\n  regional sales\n1 to 12\n2 B 18\n3 C 21\n4 D 14\n5 E 34\n<\/strong><\/pre>\n
 We kunnen argumentlevels()<\/strong> gebruiken om de huidige niveaus van de regio<\/em> van de factorvariabele te verkrijgen:<\/span><\/p>\n
 #display factor levels for region<\/em><\/span>\nlevels<\/span> (df$region)\n\n[1] \u201cA\u201d \u201cB\u201d \u201cC\u201d \u201cD\u201d \u201cE\u201d\n<\/strong><\/pre>\n
 En we kunnen de volgende syntaxis gebruiken om de factorniveaus te herschikken:<\/span><\/p>\n
 #re-order factor levels for region\n<\/em>df$region <- factor<\/span> (df$region, levels<\/span> =c(' A<\/span> ', ' E<\/span> ', ' D<\/span> ', ' C<\/span> ', ' B<\/span> '))<\/span>\n\n#display factor levels for region<\/em>\n<\/span>levels<\/span> (df$region)\n\n[1] \u201cA\u201d \u201cE\u201d \u201cD\u201d \u201cC\u201d \u201cB\u201d\n<\/strong><\/pre>\n
 De factorniveaus staan nu in de volgorde die we hebben opgegeven met behulp van het niveau-<\/strong> argument.<\/span><\/p>\n
 Als we vervolgens een staafdiagram in R willen maken en de staven willen ordenen op basis van de factorniveaus van de regio<\/em> , kunnen we de volgende syntaxis gebruiken:<\/span> <\/p>\n
 #re-order data frame based on factor levels for region\n<\/em>df <- df[ order<\/span> ( levels<\/span> (df$region)),]\n<\/span>\n#create barplot and place bars in order based on factor levels for region<\/em>\n<\/span>barplot<\/span> (df$sales, names<\/span> =df$region)\n<\/strong><\/pre>\n
\"Herschik<\/p>\n
 Merk op hoe de staven in volgorde staan van de factorniveaus die we voor de regio<\/em> hebben opgegeven.<\/span><\/p>\n
\n
 Op deze pagina vindt u meer R-tutorials.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
Soms wil je misschien de niveaus van bepaalde factorvariabelen in R herschikken. Gelukkig is dit eenvoudig te doen met behulp van de volgende syntaxis: factor_variable <- factor (factor_variable, levels =c(‚ this ‚, ‚ that ‚, ‚ those ‚, …)) Het volgende voorbeeld laat zien hoe u deze functie in de praktijk kunt gebruiken. Voorbeeld: factorniveaus […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-1444","post","type-post","status-publish","format-standard","hentry","category-gids"],"yoast_head":"\nHoe factorniveaus in R te herschikken (met voorbeelden) - Statorials<\/title>\n<meta name=\"description\" content=\"In deze tutorial wordt uitgelegd hoe u factorniveaus in R kunt herschikken, met verschillende voorbeelden.\" \/>\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\/nl\/herschik-de-factorniveaus-in-r\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hoe factorniveaus in R te herschikken (met voorbeelden) - Statorials\" \/>\n<meta property=\"og:description\" content=\"In deze tutorial wordt uitgelegd hoe u factorniveaus in R kunt herschikken, met verschillende voorbeelden.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-26T09:11:23+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/reorganiserfacteur1.png\" \/>\n<meta name=\"author\" content=\"Dr.benjamin anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr.benjamin anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"1\u00a0Minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/\",\"url\":\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/\",\"name\":\"Hoe factorniveaus in R te herschikken (met voorbeelden) - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/nl\/#website\"},\"datePublished\":\"2023-07-26T09:11:23+00:00\",\"dateModified\":\"2023-07-26T09:11:23+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\"},\"description\":\"In deze tutorial wordt uitgelegd hoe u factorniveaus in R kunt herschikken, met verschillende voorbeelden.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/nl\/herschik-de-factorniveaus-in-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Thuis\",\"item\":\"https:\/\/statorials.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Factorniveaus in r herschikken (met voorbeelden)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/nl\/#website\",\"url\":\"https:\/\/statorials.org\/nl\/\",\"name\":\"Statorials\",\"description\":\"Uw gids voor statistische competentie\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/nl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"de\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/d4b8842173cca1bb62cdec41860e4219\",\"name\":\"Dr.benjamin anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\/\/statorials.org\/nl\/#\/schema\/person\/image\/\",\"url\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"http:\/\/statorials.org\/nl\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr.benjamin anderson\"},\"description\":\"Ik ben Benjamin, een gepensioneerde hoogleraar statistiek die nu een toegewijde Statorials-lesgever is. 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