Apology. Will investigate ?segments. But this is simpler than that ?
think<-20 xc<-c(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40) yc<-c(2.2, 2.28454054054054, 2.37536982774792, 2.47313421094031, 2.5785575746323, 2.6924505136953, 2.8157201615705, 2.94938049983818, 3.09456286072372, 3.25252617706843, 3.42466633005651, 3.61252368944728, 3.8177876360978, 4.0422965148466, 4.28803111715535, 4.55709949144067, 4.85171070979966, 5.17413530104881, 5.5266505359318, 5.91146976820772, 6.33065670052978, 6.78602775401095, 7.27904848896425, 7.81073282553444, 8.38155598805605, 8.99139286720872, 9.63949219065441, 10.3244932533533, 11.0444863687371, 11.7971117346767, 12.5796855744434, 13.3893386735135, 14.2231516747487, 15.0782737166279, 15.9520153622441, 16.8419119612243, 17.7457583253788, 18.6616190047916, 19.5878202092552, 20.5229296995423 ) plot(xc, yc, type="l", ylim=c(0,50), xlim=c(0,50), lwd=2, xlab="M", ylab="seconds") abline(a=-20, b=1.00, lty="dashed", col="red") abline( 2.2, 0, lty="dashed", col = "red") Thanks, Mohan -----Original Message----- From: R. Michael Weylandt [mailto:michael.weyla...@gmail.com] Sent: Tuesday, August 14, 2012 11:49 AM To: Mohan Radhakrishnan Cc: r-help@r-project.org Subject: Re: [R] Graphing question(basic) Hi Mohan, Your code isn't reproducible as is: see http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reprodu cible-example for more information on how you can help us help you. That said, I think you are looking for the ?segments function. Cheers, Michael On Tue, Aug 14, 2012 at 2:13 AM, Mohan Radhakrishnan <moh...@fss.co.in> wrote: > Hi, > > > > plot(xc, yc, type="l", ylim=c(0,50), xlim=c(0,50), lwd=2, xlab="M", > ylab="seconds") > > abline(a=-think, b=cpustime, lty="dashed", col="red") > > abline( 2.2, 0, lty="dashed", col = "red") > > > > This draws a response time curve an asymptote and a horizontal line. How > do I draw a line from the intersection of the asymptote and the > horizontal to intersect the y-axis ? I also want to calculate the value > at this y-axis intersection point. > > > > Thanks, > > Mohan > > > > DISCLAIMER:\ ===============...{{dropped:31}} > > ______________________________________________ > 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. DISCLAIMER:\ ===============...{{dropped:30}} ______________________________________________ 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.
