[R] Vertical Line on Plot

Peter Lauren peterdlauren at yahoo.com
Thu May 25 18:26:51 CEST 2006


I was wondering what would be the best way to put a
vertical line on a graph made with plot().  I can get
an horizontal line by plotting a vector where every
element has the same value but it is not as clear how
a vertical line should be done.

Thanks very much,
Peter.



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