in addition to Charles' suggestion which is more advanced, I found the link below very helpful. http://www.feferraz.net/en/shaded.html good luck AA.
----- Original Message ----- From: "Charles Annis, P.E." <[EMAIL PROTECTED]> To: "'gallon li'" <[EMAIL PROTECTED]>; "'r-help'" <[EMAIL PROTECTED]> Sent: Thursday, September 13, 2007 9:27 AM Subject: Re: [R] how to plot shaded area under a curve? > While it's true that polygon() is the function you need, perhaps it would > be > helpful to see an example of how to use polygon(). > > Go here: http://addictedtor.free.fr/graphiques/thumbs.php > > Put the mouse over the thumbnail plots to see larger pictures and look for > something useful. You will find it here: > http://addictedtor.free.fr/graphiques/RGraphGallery.php?graph=88 > > The code for this graph is downloadable too. Just click on the icon on > the > left of the screen. > > Best wishes! > > Charles Annis, P.E. > > [EMAIL PROTECTED] > phone: 561-352-9699 > eFax: 614-455-3265 > http://www.StatisticalEngineering.com > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On > Behalf Of gallon li > Sent: Thursday, September 13, 2007 6:52 AM > To: r-help > Subject: [R] how to plot shaded area under a curve? > > say, I am plotting > > x=seq(0,5,len=100) > y=-(x-5)^2 > > plot(x,y) > > how can I put some color or verticle lines below the plotted curve? > > [[alternative HTML version deleted]] > > ______________________________________________ > 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. > > ______________________________________________ > 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. ______________________________________________ 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.
