Hi, Thanks David Winsemius: "mtext" works !! However, in R plot, "mtext" will automatically overlap/overwrite the existing coordinates, which makes the coordinates a messy. Refer to http://www.visionopen.com/Rplot.png , which is produced by only 3 lines.
dev.new(width = 640, height = 480) > plot(sin, -pi, 2*pi) > mtext(text="2.1000", side = 1, line = 1, at = 2.1) In order to avoid the coordinates overlap, can I change the position of "2.1000" from outside the box to inside the box? If possible, how to? I tried outer = FALSE, nothing special happened ever !! cheers Pei On Wed, Jul 13, 2011 at 1:41 PM, David Winsemius <dwinsem...@comcast.net>wrote: > > On Jul 13, 2011, at 1:22 PM, JIA Pei wrote: > > Hi, all: >> >> I used two lines of very simple code to draw a sin curve. >> >> dev.new(width = 640, height = 480) >> >>> plot(sin, -pi, 2*pi) >>> >> > First look at: > > ?mtext # then try > mtext(text="2.5000", side = 1, line = 1, at = 2.5) > > >> >> Now, I added a specific line (red line in the picture at >> http://www.visionopen.com/**Rplot.png<http://www.visionopen.com/Rplot.png>) >> by using abline. >> However, I still love to add the X-coordinate "2.50000" outside the >> rectangle box. How to do it in R? >> Right now, I'm using Windows Paint to add the characters "2.50000" up to >> the >> plot drawn by R. >> > > > -- > David Winsemius, MD > West Hartford, CT > > -- Pei JIA Email: jp4w...@gmail.com cell: +1 604-362-5816 Welcome to Vision Open http://www.visionopen.com [[alternative HTML version deleted]]
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