Mikkel Grum wrote:
Hi,
I thought that the following code would give me a set of parallel lines on a plot as in the second example.
q<-c(-2253,-2119,-1985,-1850) p<-c(1,2,3,4) a<-rep(min(p),4) b<-rep(max(p),4) plot(p,q)
# example 1 lines(c(a,b),c(q,q))
Now this gives me the lines I really want:
# example 2 lines(c(a[1],b[1]),c(q[1],q[1])) lines(c(a[2],b[2]),c(q[2],q[2])) lines(c(a[3],b[3]),c(q[3],q[3])) lines(c(a[4],b[4]),c(q[4],q[4]))
I assumed that example 1 was a shorter (vectorized) way of writing example 2?? What have I got wrong?
See ?segments
Uwe Ligges
cheers, Mikkel
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