Hello, I am frastruated with this graph, just cannot get what I need. Thank you for any suggestions or help. I really appreciate it. I wrote the following code, but there are 3 problems
1, the red line is added on the graph but without any marker on the y-axis. I want to display the number '.1361' on the y-axis. So people can easily tell 'method 2' gets a constant estimate, which is 0.1361. 2, since 'method2' is a constant. I prefer in the legend area, it just shows 'method2' as a short red bar instead of a knot/spot in the middle of the red bar in the legend area. How can I delete that spot? 3, when I draw 'method1' in blue one, I prefer a filled/shaded circle instead of the unshaded circle. I tried pch='.', seems it does not really work. Hopefully I make my question clear. Thanks a lot for any help! size=c(80, 40, 20, 16, 10, 8, 4, 2) estimate=c(0.1353, 0.1337, 0.1237, 0.1164, 0.1058, 0.0983, 0.0759 , 0.0607) plot(size, estimate, type="o", lwd=1.5, col="blue", ylim=c(0, 0.2), xlim=c(0,80)) abline(h=0.1361, col="red", lwd=1.5) legend(0, 0.2,c("method1","method2"), cex=0.8, col=c("blue","red"), pch=21:1, lty=1); -- View this message in context: http://n4.nabble.com/how-to-draw-abline-correctly-tp998018p998018.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.