This maybe a silly question. I'm trying to figure out a way to draw a line from a data set which contain NA. Say, I have a set of data as:
x <- c(1.1 2.2 NA 4.4 5.5) ; y <- c(1:5) # as x,y of point a, b, c, d, and e. I would like to plot this to a line by using dot-line to connect the two adjacent points before and after the NA, something like: (a)______(b)......(d)______(e) Any help will be very appreciated. -- Smiles, Timothy Huang 黃大ㄧ 43, Lane 525, Section 3, AnKang Road, XinDian City Taipei County, Taiwan 23156, Rep. of China 台北縣23156新店市安康路三段525巷43號 Tel 886-2-2214-0517 Fax 886-2-2214-4201 Get Skype <http://www.skype.com/go/download> and call me for free. Web: www.dinodragon.com <http://www.dinodragon.com/> Blog: http://tw.myblog.yahoo.com/timd_huang/ Blog: http://bloguide.ettoday.com/dinodragon/ Web: http://www.meteoritefossilgallery.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.