On 02/11/2010 01:03 PM, RagingJim wrote:
Now, I think I am making this harder than it seems, but... I am writing a script that will allow me to pull any csv file with annual rainfall and plot it into a bar plot. The problem I am facing is that the different sites have recorded data for a different number of years. This means that every csv file has a different number of values. I need to somehow get a label at every 10 or 20 year points, and it has be able to allow for the fact that some files have 50 readings, and others have 200 readings. Now, if I use this: #axis(1,at=seq(1,rows,10),tcl=-0.5,labels=c(kent[1,2],kent[11,2],kent[21,2],kent[31,2],kent[41,2],kent[51,2],kent[61,2],kent[71,2],kent[81,2],kent[91,2]... I can get it for one file, but as soon as a file has a diff number of values, it does not work. The best I have been able to come up with is this: barplot(Ann,main=title, xlab="Year",ylab="Rainfall (mm)",ylim=c(0,ymax),col="blue",space=0,names.arg=c(kent[,2]),cex.names=0.8) however I cannot control how often the labels occur. I am sure there is an easy way to do this, but I cannot find it. I assume it will have something to do with names.arg, but I am not sure how to write what i want to write.
Hi RagingJim, How about this? dimkent<-dim(kent) axis.ticks<-seq(kent[1,2],kent[dimkent[1],2],by=20) if(kent[dimkent[1],2]%%20) axis.ticks<-axis.ticks[-length(axis.ticks] barplot(Ann,main=title, xlab="Year",ylab="Rainfall (mm)", ylim=c(0,ymax),col="blue",space=0, names.arg=axis.ticks,cex.names=0.8) Jim ______________________________________________ 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.
