df <- data.frame(g = c(1, 1, 2), x = c(-1, 1, 3), y = c(-1, -4, -9)) df %>% group_by(g) %>% summarise(across(where(is.numeric), sum)) #> `summarise()` ungrouping output (override with `.groups` argument) #> # A tibble: 2 x 3 #> g x y #> <dbl> <dbl> <dbl> #> 1 1 0 -5 #> 2 2 3 -9
