[R] 3-D plot of likelihood
murdoch at stats.uwo.ca
Mon Dec 10 17:58:32 CET 2007
On 12/10/2007 11:26 AM, David Bickel wrote:
> Could anyone recommend a package for visualizing a likelihood function
> of two scalar parameters? I would prefer a three-dimensional plot
> similar to the kind Mathematica is known for, perhaps generated by a
> package not specific to likelihood.
The basic strategy is to calculate a matrix of values of the likelihood,
corresponding to all combinations of values of two vectors. Then
persp() (in graphics) or persp3d() (in rgl) can display the surface.
I don't know of anything that corresponds to curve() to do the matrix
calculations automatically, but it may well exist.
> David R. Bickel
> Ottawa Institute of Systems Biology
> BMI Dept., University of Ottawa
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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