Hello, thank you very much for your answers. Using the command ncol worked in my special case, if I have got a legend with 4 elements, but with 5 it doesn't work. I am using two functions which I had created and checked what might be the difference, so that the second one doesn't work, but I couldn't find out what the problem is. So I am including the text of my .csv files and my functions:
My .csv file "abb8a" looks like this: ;sehr gut;eher gut;eher nicht gut;nicht gut Kontakt mit der Schule;46;49;4;1 Die richtige Wahl;32;58;8;2 mw_g_4stap<-function(pfad="F:/04 Archiv/04 Programme/19 R_Syntaxe/Grafiken_Funktionen",abb="abb8a") { setwd(pfad) postscript(file=paste(abb,".eps",sep="")) dat<-read.csv2(paste(abb,".csv",sep=""),header=T,check.names=F) dat1<-t(as.matrix(dat[,2:5],nrow=2)) colnames(dat1)<-dat[,1] zehn<-seq(10,100,10) xmax<-max(dat1) ind<-min(which(zehn>=xmax)) ticks<-seq(0,100,10) par(las=1) par(mar=c(5.9,4.5+0.3529412*(max(nchar(colnames(dat1)))-1),1,1)) barplot(dat1,width=0.61,horiz=T,col=c("steelblue4","steelblue2","lightsteelblue3","lightsteelblue1"),border="NA",axes=F,beside=F,xlim=c(0,100),cex.names=1.2,ylim=c(0,10)) par(xpd=TRUE) abline(v = seq(10, 100, by = 10), col = "white") par(xpd=F) axis(1,at=ticks,las=1,labels=paste(ticks,"%",sep="")) par(xpd=TRUE) legend(0,-1.4,xjust=0,ncol=2,legend=colnames(dat)[-1],fill=c("steelblue4","steelblue2","lightsteelblue3","lightsteelblue1"),bty="n",border="white",cex=1.2) par(xpd=FALSE) dev.off() } mw_g_4stap() ### My .csv file "probe8_5" looks like this: ;stimme zu;stimme zu;stimme zu;stimme zu;stimme zu Eltern konnten mir beim ler;23;70;1;1;5 leichte Ent;20;10;10;10;50 leichte Ent;20;10;10;10;50 leichte Ent;20;10;10;10;50 leichte Ent;20;10;10;10;50 leichte Ent;20;10;10;10;50 leichte Ent;20;10;10;10;50 mw_g_5stap<-function(pfad="F:/04 Archiv/04 Programme/19 R_Syntaxe/Grafiken_Funktionen",abb="probe8_5") { setwd(pfad) postscript(file=paste(abb,".eps",sep="")) dat<-read.csv2(paste(abb,".csv",sep=""),header=T,check.names=F) dat1<-t(as.matrix(dat[,2:6],nrow=2)) dat1 colnames(dat1)<-dat[,1] dat1 zehn<-seq(10,100,10) xmax<-max(dat1) ind<-min(which(zehn>=xmax)) ticks<-seq(0,100,10) par(las=1) par(mar=c(5,4.5+0.3529412*(max(nchar(colnames(dat1)))-1),1,1)) barplot(dat1,width=0.61,horiz=T,col=c("navyblue","steelblue4","steelblue2","lightsteelblue3","lightsteelblue1"),border="NA",axes=F,beside=F,xlim=c(0,100),cex.names=1.2,ylim=c(0,10)) par(xpd=TRUE) abline(v = seq(10, 100, by = 10), col = "white") par(xpd=F) axis(1,at=ticks,las=1,labels=paste(ticks,"%",sep="")) par(xpd=TRUE) legend(0,-1.4,xjust=0,ncol=3,legend=colnames(dat)[-1],fill=c("navyblue","steelblue4","steelblue2","lightsteelblue3","lightsteelblue1"),bty="n",border="white",cex=1.2) dev.off() } mw_g_5stap() ### The first function works but the second one doesn't. Does anyone know why? Thank you very much for your help in advance!! Marion 2012/5/9 Uwe Ligges <lig...@statistik.tu-dortmund.de> > > > On 09.05.2012 13:23, Marion Wenty wrote: > >> dear r-helpers, >> >> i have got another question: >> >> i am using the functions >> >> par(xpd=T) >> legend >> >> to create a legend below the x-axis. i used the parameter horiz=T. >> >> now i would like to put the elements of the legend in two rows: >> >> e.g. if my legend has got 5 elements, i would like 3 elements in one row >> and the last two elements in the next row. >> >> does anyone know how to do that? >> > > Example: > > bp <- barplot(1) > par(xpd = TRUE) > legend(bp, 0, xjust=0.5, legend=letters[1:5], lwd=1:5, ncol=3) > > Uwe Ligges > > > thank you very much for your help in advance! >> >> marion >> >> [[alternative HTML version deleted]] >> >> ______________________________**________________ >> R-help@r-project.org mailing list >> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> >> PLEASE do read the posting guide http://www.R-project.org/** >> posting-guide.html <http://www.R-project.org/posting-guide.html> >> and provide commented, minimal, self-contained, reproducible code. >> > [[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.