我经常从数据集中的变量/列的不一致命名的协作者获取数据集。我的第一个任务之一是重命名它们,我想在R中完全解决这个问题。
as.Given <- c("ICUDays","SexCode","MAX_of_MLD","Age.Group") underscore_lowercase <- c("icu_days","sex_code","max_of_mld","age_group") camelCase <- c("icuDays","sexCode","maxOfMld","ageGroup")
鉴于different opinions about naming conventions和what was proposed in Python的精神,在R中以用户指定的方式从as.Given到underscore_lowercase和/或camelCase有什么方法?
编辑:Also found this related post in R / regex,特别是@rengis的答案。
尝试这个。这些至少在以下示例上工作:
原文链接:https://www.f2er.com/regex/357442.htmltoUnderscore <- function(x) { x2 <- gsub("([A-Za-z])([A-Z])([a-z])","\\1_\\2\\3",x) x3 <- gsub(".","_",x2,fixed = TRUE) x4 <- gsub("([a-z])([A-Z])","\\1_\\2",x3) x5 <- tolower(x4) x5 } underscore2camel <- function(x) { gsub("_(.)","\\U\\1",x,perl = TRUE) } ####################################################### # test ####################################################### u <- toUnderscore(as.Given) u ## [1] "icu_days" "sex_code" "max_of_mld" "age_group" underscore2camel(u) ## [1] "icuDays" "sexCode" "maxOfMld" "ageGroup"