Hi, I have a problem with the function "error.bars.by" in package "psych". This is the code for example of a graph:
keys.list=list(Agree=c(-1,2:5),Conscientious=c(6:8,-9,-10),Extraversion=c(-11,-12,13:15),Neuroticism=c(16:20),Openness = c(21,-22,23,24,-25)) keys = make.keys(28,keys.list,item.labels=colnames(bfi)) scores = score.items(keys,bfi,min=1,max=6) require(psych) error.bars.by(scores$scores,round(bfi$age/10)*10,by.var=TRUE, main="BFI age trends",legend=3,labels=colnames(scores$scores), xlab="Age",ylab="Mean item score") I need to change the plotting character and line type of the graph according to the scores (Agree,Conscientious,Extraticism,Openness). I have tried with: error.bars.by(scores$scores,round(bfi$age/10)*10,by.var=TRUE, main="BFI age trends",legend=3,labels=colnames(scores$scores), pch=c(1,2,3,4), lty=1 ,xlab="Age",ylab="Mean item score") But there is a problem: Error in localWindow(xlim, ylim, log, asp, ...) : formal argument "pch" matched by multiple actual arguments Anyone can help me for this problem. Many thanks. Tham Tran -- View this message in context: http://r.789695.n4.nabble.com/plot-in-package-psych-with-function-error-bars-by-tp4691632.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.
