Hi Rodrigo, >> I need to rotate on y axis the lines and symbols of constrained and sites >> representation.
Easiest is to multiply the axis you want to invert by -1. Something like the following, where my.cca is the orginal object and yax = obj[, 2] (xax being obj[, 1]). Obviously, copying isn't necessary. mynew.cca <- my.cca mynew.cca$scores$species[, 2] <- my.cca$scores$species[, 2] * -1 mynew.cca$scores$sites[, 2] <- my.cca$scores$sites[, 2] * -1 mynew.cca$scores$centroids[, 2] <- my.cca$scores$centroids[, 2] * -1 Regards, Mark. Rodrigo Aluizio wrote: > > He everybody, > Well I have a biplot CCA-like origined from plot.cca (vegan package). I > need to rotate on y axis the lines and symbols of constrained and sites > representation. If I do that on an image editor, I rotate everything, > including titles, axes labels and positions. I just need to rotate the > inner par and keep the variables names (constrained) and symbols in the > new positions but with the right direction. > So, is there on R a way to do that while creating the image? > Here is the code that generate the graphic. > > plot.cca(CAPpotiFT,type='none',display=c('bp','sites'),main='Total Fauna > Sites x Environment') > text.cca(CAPpotiFT,dis='cn',col='black',cex=0.6,lwd=0.5,lty='dotted') > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='1',],pch=21) > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='2',],pch=20) > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='3',],pch=22,bg='gray') > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='4',],pch=24) > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='5',],pch=24,bg='black') > points(ScoresCAPFT$sites[FatoresRep$BiofaciesBC=='6',],pch=25,bg='gray') > > Thanks in advice. > ___________________________________ > MSc. Rodrigo Aluizio > Centro de Estudos do Mar/UFPR > Laboratório de Micropaleontologia > > [[alternative HTML version deleted]] > > > ______________________________________________ > R-help@r-project.org mailing list > 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. > > -- View this message in context: http://www.nabble.com/Mirror-Image-on-Biplot-Graphic-tp19857549p19858155.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list 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.