Hi - I'm just starting out with R and have come up against a problem with what should be a simple operation. I'm plotting a range of safety standards for 7 different chemicals. I don't want the standard box and whisker plot - I just a dot for each value. Whilst using "plot.default" I get the error "invalid xlim value" - which is confusing since using the same script with "plot" does not produce this error. However, I do notice that only alternate xlim tick mark labels appear when using "plot". Therefore, a question in 2 parts - firstly what is incompatible about my xlim argument with plot.default and secondly, how do I suppress the "check.overlap" for tick mark labels in plot.default?
Annotated script below (data file also uploaded in case its useful) and thanks in advance for any help: #dataframe is column of numerical values of chemical safety guidelines "SQG" plus a column identifying the chemicals to which each value pertains i.e. # SQG Chemical #1 0.07918 Cd #2 -0.15490 Cd #3 -0.15490 Cd #4 0.95904 Cd #5....etc. etc. #assign correct plotting order for each chemical level OrderedLevels<-factor(Chemical,levels=c("Cd", "Cu", "Zn", "Phen", "Ant", "Flu", "Pyr", "Tot")) #set axis label and tick mark label font sizes to be readable when pasted into final document par(cex.lab=1.2,cex.axis=1.3) #produce plot with plotting symbols of round black dots with cex multiplier of 1.5 plot.default(SQG~OrderedLevels,cex=1.5,pch=16,col=1,xlim=c("Cd","Cu","Zn","Phe","Ant","Flu","Pyr","Tot"),xlab = "Chemical",ylab = expression(paste(" ",Log[10]," metal ("*m*g*~kg^{-1},") or PAH ("*mu*g*~kg^{-1},") SQG"))) http://www.nabble.com/file/p11963282/TELrange.csv TELrange.csv -- View this message in context: http://www.nabble.com/New-user-help-with-plot.default-tf4205767.html#a11963282 Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@stat.math.ethz.ch 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.