Properly labeling abline with text?
Try this: library(plotrix) plot(x_vals, y_vals) abline(h=min(y_vals), col="darkred") boxed.labels(max(x_vals) - strwidth(bottom_label)/2, min(y_vals) + strheight(bottom_label), bottom_label) See ?boxed.labels for more.
On Mon, Mar 23, 2009 at 11:01 PM, Jason Rupert <jasonkrupert at yahoo.com> wrote:
The result of the code shown below is posted at the following URL: http://n2.nabble.com/Trying-to-properly-label-abline-td2524629.html I would like to figure out a better way to label the horizontal abline. I tried multiplying the text y position by a scale, but this didn't always put the text in a useful position. ? I guess I am curious if there is a preferred procedure for labeling the abline. ?Is there a way to "fill" the text label and also put a box around the text label? ?I guess I would also like to have the box around the text match the abline format. Thank you for any info or insights. x_vals<-1:1000 y_vals<-rnorm(1000) plot(x_vals, y_vals) top_label<-paste("Top Label = ", format(max(y_vals), digits=2), sep="") abline(h=max(y_vals), col="darkred") text(max(x_vals), max(y_vals), top_label, pos=2) bottom_label<-paste("Bottom Label = ", format(min(y_vals),digits=2), sep="") abline(h=min(y_vals), col="darkred") text(max(x_vals), min(y_vals), bottom_label, pos=2)
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