Hi all, I have scoured the archives of this forum but nothing quite seems to fit the bill...
I would like to plot a graph displaying two variables (y axes) that share date as the x axis. However, the date values for each variable are not the same - for example, some parasitoids were not released on days that collections from the trap took place, whilst sometimes releases did occur on the same day. I would like to align them. My code is: #### CollectionDate<-as.Date(CollectionDate,"%m/%d/%Y") # days that had collections release.date.Total<-as.Date(release.date.Total,"%m/%d/%Y") # days that had releases par(mar=c(5,4,4,4)+0.1) plot(CollectionDate[data$Trap=="DPAU1"],TotalP[data$Trap=="DPAU1"],type="n",ylim=c(0,80),xlab="Time",ylab="Number of egg masses") # I am using one trap of many lines(CollectionDate[data$Trap=="DPAU1"],TotalP[data$Trap=="DPAU1"],lwd=2) par(new=T) plot(release.date.Total[data$Trap=="DPAU1"],parasitoid.total[data$Trap=="DPAU1"],axes=F,type="h",lty=1,col="red",xlab="",ylab="",lwd=1.2) axis(4,las=1) mtext(side=4,line=3,"Total parasitoids released") ### As in the above code, I suppressed the axes for the second plot, but if I don't the x axis (date) has two tick marks for each year. Is there a way to align the date objects to begin with without compromising the graphs themselves? Thanks in advance, Ben -- View this message in context: http://r.789695.n4.nabble.com/plot-with-two-y-axes-BUT-unaligned-x-axis-tp3599162p3599162.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.
