如何將這兩個代碼合二為一而不是將它們分開？它們運行良好，但我希望將它們合并為一個代碼。也就是說，按任務和部門計算生產總數及其平均值。
df %>%
group_by(task, department) %>%
summarise(across(.cols = c(production),
.fns = sum,
na.rm=T))
df %>%
group_by(task, department) %>%
summarise(across(.cols = c(hours),
.fns = mean,
na.rm=T))
uj5u.com熱心網友回復：
df %>%
group_by(task, department) %>%
summarise(mean = mean(hours), sum = sum(production))
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