Thank you!!! It's what I needed. best regard Maicel Monzon, PHD Centro Nacional de Ensayos Clinicos
Ulrik Stervbo <ulrik.ster...@gmail.com> escribió:
If you want the total number of rows in the original data.frame after counting the rows in each group, you can ungroup and sum the row counts, like: library("dplyr") mtcars %>% group_by (am, gear) %>% summarise (n=n()) %>% mutate(rel.freq = paste0(round(100 * n/sum(n), 0), "%")) %>% ungroup() %>% mutate(row.tot = sum(n)) HTH Ulrik On Mon, 4 Jul 2016 at 18:23 David Winsemius <dwinsem...@comcast.net> wrote:> 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 > > > > ---------------------------------------------------------------- > > > > > -- > Este mensaje le ha llegado mediante el servicio de correo electronico que ofrece Infomed para respaldar el cumplimiento de las misiones del Sistema Nacional de Salud. La persona que envia este correo asume el compromiso de usar el servicio a tales fines y cumplir con las regulaciones establecidas > > Infomed: http://www.sld.cu/ > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
---------------------------------------------------------------- -- Este mensaje le ha llegado mediante el servicio de correo electronico que ofrece Infomed para respaldar el cumplimiento de las misiones del Sistema Nacional de Salud. La persona que envia este correo asume el compromiso de usar el servicio a tales fines y cumplir con las regulaciones establecidas Infomed: http://www.sld.cu/ ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
