{"id":1992,"date":"2023-07-24T04:18:55","date_gmt":"2023-07-24T04:18:55","guid":{"rendered":"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/"},"modified":"2023-07-24T04:18:55","modified_gmt":"2023-07-24T04:18:55","slug":"renomear-niveis-de-fator-r","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/","title":{"rendered":"Como renomear n\u00edveis de fator em r (com exemplos)"},"content":{"rendered":"

<\/p>\n

\n

Existem dois m\u00e9todos que voc\u00ea pode usar para renomear os n\u00edveis dos fatores em R:<\/span><\/p>\n

M\u00e9todo 1: use n\u00edveis Base R()<\/strong><\/span><\/p>\n

 levels(df$col_name) <- c(' new_name1<\/span> ', ' new_name2<\/span> ', ' new_name3<\/span> ')<\/strong><\/pre>\n
 M\u00e9todo 2: Use recode() do pacote dplyr<\/strong><\/span><\/p>\n
 library<\/span> (dplyr)\n\ndata$col_name <- recode(data$col_name, name1 = ' new_name1<\/span> ', \n                                       name2 = ' new_name2<\/span> ',\n                                       name3 = ' new_name3<\/span> ')<\/b><\/span><\/span><\/pre>\n
 Os exemplos a seguir mostram como usar cada um desses m\u00e9todos na pr\u00e1tica.<\/span><\/p>\n
 M\u00e9todo 1: use a fun\u00e7\u00e3o n\u00edveis()<\/strong><\/span><\/h3>\n
 Suponha que temos o seguinte quadro de dados em R:<\/span><\/p>\n
 #create data frame<\/span>\ndf <- data. frame<\/span> (conf = factor(c('North', 'East', 'South', 'West')),\n                 points = c(34, 55, 41, 28))\n\n#view data frame<\/span>\ndf\n\n   conf points\n1 North 34\n2 East 55\n3 South 41\n4 West 28\n\n#view levels of 'conf' variable<\/span>\nlevels(df$conf)\n\n[1] \u201cEast\u201d \u201cNorth\u201d \u201cSouth\u201d \u201cWest\u201d<\/strong>\n<\/pre>\n
 O c\u00f3digo a seguir mostra como renomear um n\u00edvel de fator por nome usando a fun\u00e7\u00e3olevels()<\/strong> :<\/span><\/p>\n
 #rename just 'North' factor level<\/span>\nlevels(df$conf)[levels(df$conf)==' North<\/span> '] <- ' N<\/span> '\n\n#view levels of 'conf' variable<\/span>\nlevels(df$conf)\n\n[1] \u201cEast\u201d \u201cN\u201d \u201cSouth\u201d \u201cWest\u201d<\/strong>\n<\/pre>\n
 E o c\u00f3digo a seguir mostra como renomear cada n\u00edvel de fator:<\/span><\/p>\n
 #rename every factor level<\/span>\nlevels(df$conf) <- c(' N<\/span> ', ' E<\/span> ', ' S<\/span> ', ' W<\/span> ')\n\n#view levels of 'conf' variable<\/span>\nlevels(df$conf)\n\n[1] \u201cN\u201d \u201cE\u201d \u201cS\u201d \u201cW\u201d<\/strong>\n<\/pre>\n
 Exemplo 2: usando a fun\u00e7\u00e3o recode()<\/strong><\/span><\/h3>\n
 O c\u00f3digo a seguir mostra como usar a fun\u00e7\u00e3o recode()<\/strong> do pacote dplyr para renomear n\u00edveis de fator:<\/span><\/p>\n
 library<\/span> (dplyr)<\/span>\n\n#create data frame<\/span>\ndf <- data. frame<\/span> (conf = factor(c('North', 'East', 'South', 'West')),\n                 points = c(34, 55, 41, 28))\n\n#recode factor levels\n<\/span>df$conf <- recode(df$conf, North = ' N<\/span> ',\n                           East = ' E<\/span> ',\n                           South = ' S<\/span> ',\n                           West = ' W<\/span> ')\n\nlevels(df$conf)\n\n[1] \u201cE\u201d \u201cN\u201d \u201cS\u201d \u201cW\u201d\n<\/strong><\/pre>\n
 Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o recode() aqui<\/a> .<\/span><\/p>\n
 Recursos adicionais<\/strong><\/span><\/h3>\n
 Como converter um fator em num\u00e9rico em R<\/a>
 Como converter fator em caractere em R<\/a>
 Como reorganizar os n\u00edveis dos fatores em R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
Existem dois m\u00e9todos que voc\u00ea pode usar para renomear os n\u00edveis dos fatores em R: M\u00e9todo 1: use n\u00edveis Base R() levels(df$col_name) <- c(‘ new_name1 ‘, ‘ new_name2 ‘, ‘ new_name3 ‘) M\u00e9todo 2: Use recode() do pacote dplyr library (dplyr) data$col_name <- recode(data$col_name, name1 = ‘ new_name1 ‘, name2 = ‘ new_name2 ‘, name3 […]<\/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-1992","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"\nComo renomear n\u00edveis de fator em R (com exemplos) - Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como renomear n\u00edveis de fator em R, com v\u00e1rios exemplos.\" \/>\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\/pt\/renomear-niveis-de-fator-r\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Como renomear n\u00edveis de fator em R (com exemplos) - Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como renomear n\u00edveis de fator em R, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-24T04:18:55+00:00\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/\",\"url\":\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/\",\"name\":\"Como renomear n\u00edveis de fator em R (com exemplos) - Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-24T04:18:55+00:00\",\"dateModified\":\"2023-07-24T04:18:55+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como renomear n\u00edveis de fator em R, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/renomear-niveis-de-fator-r\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Como renomear n\u00edveis de fator em r (com exemplos)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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