On 13/07/2011 7:49 PM, David Winsemius wrote:
On Jul 13, 2011, at 7:42 PM, JIA Pei wrote:
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 !!
You should use text() rather than mtext() if you are going to plot
within the "user area".
I think that advice is not quite right (or it is descriptive, not
prescriptive). The main difference between text and mtext is what
coordinate systems are used to specify locations. If you want to
specify something relative to the frame of your graph, mtext is the
right tool. Usually such things go outside the frame, but if you want
something just inside, it still makes sense to use mtext.
For example, to put 2.1000 just inside the box on side 1, use
mtext(text="2.1000", side=1, line = -1, at = 2.1)
This works regardless of the scaling of the y axis, e.g. the same code
would work if the original plot had been
curve(sin(x)*100, -pi, 2*pi)
Duncan Murdoch
______________________________________________
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.
