> On 09 Apr 2015, at 08:11 , Luis Fernando García <luysgar...@gmail.com> wrote: > > Dear R experts, > > I am newbie on the R use, now I want to sort my data by mean in a > descending and not acending order (like I have done so far). If any of you > could help me with this, it would be really appreciated!
How about replacing "mean" with "function(x) -mean(x)" ? -pd > > Thanks! > > > Please find the script attached with the summary of the dat object > > > pt<-summarySE(dat, measurevar="Time", groupvars=("Prey"))# > > pt > > Prey N Time sd se ci > 1 cochinilla 10 351.6000 99.34103 31.41439 71.06429 > 2 hormiga 17 193.2353 92.50014 22.43458 47.55918 > 3 larva 18 259.0667 93.84009 22.11832 46.66558 > 4 termita 19 144.6316 65.30895 14.98290 31.47791 > > pt$Prey=c("Isopoda","Formicidae","Lepidoptera","Isoptera") > > bymean <- with(pt, reorder(Prey, Time, mean))# REordenar por promedio > > > library(ggplot2) > > png(filename = "plotloxo1.png", width = 500, height = 500) > > e <- qplot(bymean, pt$Time,size=3)+theme(panel.grid.major = > element_blank(), panel.grid.minor = element_blank(), > panel.background = > element_blank(), axis.line = element_line(colour = "black"))# > > > e<-e+theme(legend.position="none")# > e+ geom_errorbar(data = pt, aes(x = pt$Prey, y = pt$Time, ymin = pt$Time - > pt$ci, ymax = pt$Time + pt$ci), > colour = "black", width = 0.4, size=0.5)+ #Añadir barras > de error > xlab("Prey") + > ylab("Time (Seconds)") + > ggtitle("Total PM25 emissions") > > dev.off()# > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. -- Peter Dalgaard, Professor, Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.com ______________________________________________ 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.