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| library(dplyr) | |
| library(purrr) | |
| library(rlang) | |
| derange <- function(data, ..., by_group = FALSE){ | |
| arrange( data, !!!map( quos(...), ~ quo(desc(!!.)) ), by_group = by_group ) | |
| } | |
| d <- data.frame( x = 1:10, y = letters[1:10]) | |
| derange(d, x, y) |
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derange <- function(data, ..., by_group = FALSE){
if(by_group){
dplyr::arrange( data, !!!map( quos(...), ~ quo(desc(!!.)) ), .by_group = TRUE)
} else{
dplyr::arrange( data, !!!map( quos(...), ~ quo(desc(!!.)) ))
}
}
d <- data.frame( x = 1:10, y = letters[1:10])
dg <- d %>% group_by(y)
derange(d, x, y)
derange(dg, x, y)
derange(dg, x, y, by_group = TRUE)