[R] "simple" 3-dimensional plots?

Uwe Ligges ligges at statistik.tu-dortmund.de
Wed Sep 2 09:57:09 CEST 2009

See, e.g.,

cloud() in package "lattice"
plot3d() in package "rgl"
scatterplot3d() in package "scatterplot3d"

Uwe Ligges

ivowel at gmail.com wrote:
> dear R experts: I am trying to plot an empirical likelihood function in 3d.  
> The values are not over a regular grid---I just searched the likelihood  
> function to find the optimal value, and then computed a few values around  
> it. (each point in the likelihood function takes a very long time to  
> compute.)
> the likelihood values now sit in a csv file that has three  
> columns, "mu", "sd", and "v". I would like to look at my 3d plots to find  
> out how well or badly behaved my likelihood function is (and then compute a  
> Hessian, my next task).
> Is persp() the correct function for this task? something else?
> is there a wrapper that takes my x, y, and z values (which come in almost  
> random order), and puts them into the format that persp() needs?
> pointers appreciated.
> sincerely,
> /iaw
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