grid refers you to abline when"more fine tuning is required", i.e.
when the situation is not a regular grid.
?abline
abline(v=286.16, lty="dotted")
If you had a vector, vec, then this should do the trick:
abline(v=vec, lty="dotted")
--
David Winsemius
On Mar 16, 2009, at 4:25 PM, Laura Rodriguez Murillo wrote:
Hi dear all!
I wonder if anybody can help me with this:
I have a plot:
allchr <- read.table("allchrtog.txt", header=F)
attach(allchr)
names(allchr)
[1] "V1" "V2" "V3" "V4"
plot(V1,V3, type="n")
lines(V1,V3)
and I want to add grids to the plot but just at specific x points. So
for example, the first would be at 286.16 in the x axis.
Does anybody know how can I add these lines?
Thank you so much!
Laura
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
