> On Jul 4, 2016, at 6:56 AM, mai...@infomed.sld.cu wrote:
> 
> Hello,
> How can I aggregate row total for all groups in dplyr summarise ?

Row total … of what? Aggregate … how? What is the desired answer?



> library(dplyr)
> mtcars %>%
>  group_by (am, gear) %>%
>  summarise (n=n()) %>%
>  mutate(rel.freq = paste0(round(100 * n/sum(n), 0), "%"))
> 
> best regard
> Maicel Monzon
> 
> 
> 
> ----------------------------------------------------------------
> 
> 
> 
> 
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