Re: Information-theoretic functions (David Bateman)

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Muthiah Annamalai wrote:
> I think you can look at the CVS online via source-forge's
> website. The link to the information theory toolbox is at:
> http://octave.cvs.sourceforge.net/octave/octave-forge/main/info-theory/inst/
> 
> I think of the functions you have presented, infogain.m is something
> that is not in the toolbox. I suggest to you to please look through the
> source files already in info-theory toolbox, and see if you can rework
> the infogain.m. 

Thanks for the link.  It looks like in fact our functions are
complementary: for example your entropy.m function calculates
information entropy from the set of probabilities, whereas mine takes a
sequence (or two sequences) and calculates, first the probabilities,
then the resulting entropy (or joint entropy).

So, why don't I rewrite my functions to interact with yours? For
example, I can write entropy_seq(x) which takes a sequence, calculates
the probabilities, and then calls your function entropy() to get the answer.

Best wishes,

    -- Joe


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