Các lệnh R thường gặp

Round number in dplyr package

options(pillar.sigfig = 4)
PlantGrowth |> dplyr:::group_by(group) |>
dplyr:::summarise(weight_mean = mean(weight))

  group weight_mean         
1 ctrl        5.032
2 trt1        4.661
3 trt2        5.526