Re: [R] 3-D plot of likelihood

From: Ben Bolker <>
Date: Mon, 10 Dec 2007 18:57:05 -0800 (PST)

Duncan Murdoch-2 wrote:
> 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.
> Duncan Murdoch

See ?curve3d in the emdbook package ...

  Ben Bolker

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