[R] Plotting a graph of many lines between groups of points...

[Joel Kincaid]

johnson.2060 at osu.edu wrote:
 > 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
 >
is this stored as a data.frame? a matrix? In any case there seems to be 
a problem with your indexing ...
 > 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.
indexing is ok if you have df$v3[i] ....
 >
 > 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.
could you send the actual code for your plot? Perhaps some way to 
construct the data. at this point things are a bit murky.
 >
 > Do I need to turn these into vectors before plotting them?
Thus my question about how the data are stored...
 >
 > Any help would be greatly appreciated.
 >
 > Thanks,
 > Andrew
 >
 > ______________________________________________
 > R-help at stat.math.ethz.ch mailing list
 > https://www.stat.math.ethz.ch/mailman/listinfo/r-help

Cheers,
Joel

Joel F. Kincaid, Ph. D.
Assistant Professor
Department of Economics and Finance
Franklin P. Perdue School of Business
Salisbury University
Salisbury Maryland, 21801
Phone: (410) 548-4416
Email:   jfkincaid at salisbury.edu