[R] Plotting a graph of many lines between groups of points...
Andrew Johnson
johnson.2060 at osu.edu
Tue Jul 15 21:42:02 CEST 2003
I have a data file read into a data frame.
For example,
V1 V2 V3 V4
1 1 1 3 4
2 2 3 5 10
. . . . .
. . . . .
n V1[n] V2[n] V3[n] V4[n]
to n=many thousand
I want to plot a graph with many line segments, where v1[i]=x1, v2[i]=y1,
v3[i]=x2, v4[i]=y2 for i=1,n.
This seems relatively simple in theory but I've spent quite a bit of time
trying to make it happen with plot(type=), points(x,y), or lines(x,y) to no
avail.
Do I need to turn these into vectors before plotting them?
Any help would be greatly appreciated.
Thanks,
Andrew
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