New in Wolfram Mathematica 6: Symbolic Statistical Computing ◄ previous | next ►
Visualize Likelihood Functions for Data
The integrated architecture of Mathematica 6 makes it easy to visualize statistical properties of data—here the log likelihood surface for a gamma-distributed sample.
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Click for copyable input
Plot3D[Evaluate[

  Total[Log[

    Map[PDF[GammaDistribution[\[Alpha], \[Beta]], #] &, 

     RandomReal[GammaDistribution[2, 10], 50]]]]], {\[Alpha], 0.5, 

  5}, {\[Beta], 2, 25}, MeshFunctions -> {#3 &}, 

 ColorFunction -> "SouthwestColors"]
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