Dylan Beaudette wrote:
> The source code for the algorithm is given in Matlab source[2]. I have
> tried unsuccessfully to port the code to R, mostly because I do not
> completely understand several of the matlab matrix idioms used in the
> code.
what are you stuck on in particular?
you can install GNU Octave to play around with Matlab-like syntax.
dot-before-operator (e.g. ".*") for array multiplication might be a little
confusing, it does like:
>> a = [ 1 2 ]
>> b = [ 10 20 ]
>> a .* b
ans =
10 40
>> a * b'
ans =
50
( ' transposes array from 1x2 to 2x1)
Hamish
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