how to group by 2 variables in r
library(dplyr)
tab %>%
group_by(month, variable) %>%
summarise(a_sum=sum(amount),
a_mean=(mean(amount)))how to group by 2 variables in r
library(dplyr)
tab %>%
group_by(month, variable) %>%
summarise(a_sum=sum(amount),
a_mean=(mean(amount)))Copyright © 2021 Codeinu
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