dplyr arrange by reverse alphabetical order [dupli

问题:

This question already has answers here:

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Closed 2 years ago.

I'm curious why the arrange function won't will work for alphabetical order but not reverse alphabetical order.

df <- data.frame(string = as.character(c("b", "a", "c")), stringsAsFactors = F) 

df %>% arrange(string) #works

df %>% arrange(-string) #does not work

Am I just using the completely wrong method for what I'm trying to accomplish?

回答1:

From the ?arrange help page, use desc()

df %>% arrange(desc(string))