[R] plot(..., type="h") w/ origin not at y=0

[Uwe Ligges]

Peter Dalgaard BSA wrote:
> 
> Cyril Humbert <humbertc at univ-mlv.fr> writes:
> 
> > Is it a way to make plots with vertical lines, like plot(x, y, type="h"),
> > but starting from a different value than y=0.
> >
> > For example, with x=1:3, y=-(1:3), y.orig=-3 :
> >
> >   -1  |
> >       |
> > y -2  |  |
> >       |  |
> >   -3  |  |  |
> >       1  2  3
> >          x
> >
> 
> You might subtract y.orig from the data and add it to the axis labels....

Or see ?segments:
 plot(x, y, type="n")
 segments(x, y, x, y.orig)

Uwe Ligges
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