R:summarise_all,summarise_each,summarise_each_,summarise_at
R:summarise_all,summarise_each,summarise_each_,summarise_at R:summarise_all,summarise_each,summarise_each_,summarise_at Peter Lin 2018/4/6 library(dplyr) library(purrr) mtcars %>% map_dbl(mean) ## mpg cyl disp hp drat wt ## 20.090625 6.187500 230.721875 146.687500 3.596563 3.217250 ## qsec vs am gear carb ## 17.848750 0.437500 0.406250 3.687500 2.812500 mtcars %>% summarise_all(mean) ## mpg cyl disp hp drat wt qsec vs ## 1 20.09062 6.1875 230.7219 146.6875 3.596563 3.21725 17.84875 0.4375 ## am gear carb ## 1 0.40625 3.6875 2.8125 mtcars %>% summarise_each(funs(mean)) ## mpg cyl disp hp drat wt qsec vs ## 1 20.09062 6.1875 230.7219 146.6875 3.596563 3.21725 17.84875 0.4375 ## am gear carb ## 1 0.40625 3.6875 2.8125 m...