[R] plotting intersecting planes

[Peter Dunn]

Many thanks to all who replied to:

> > They are considering using R to avoid licensing issues with
> > MATLAB.  

...by indicating that SciLab and Octave are available.  We actually
are aware of both, and have at times tried both.  R is being
considered as it possibly caters better for both the mathematics
and statistics courses in our Department, without having to support 
two packages (such as Octave *and* R).

Still, I am looking forward to any more possible solutions to the
original question, though Carlos Ortega suggested I search the
News archive.  The solution appears to be to use  scatterplot3d, 
which isn't with my R, so I'll have to grab it and have a look.

The original request:

> about, say, plottting intersecting planes?  I can't seem to find a 
> way of plotting in 3D, and then adding another plot.
> I guess I am after a 3D equivalent of  lines  or  points;
> one plots the original plot and then adds to it.
> 
> Ideally, this would be a simple task; we wouldn't want to have
> our students mucking about too much to plot two planes intersecting.

Ideally, a simpler solution is still preferred!

But thanks again to everyone.

P.

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