[R] Re: R-help Digest V2 #541

From: Adrian Trapletti (a.trapletti@bluewin.ch)
Date: Fri 05 Oct 2001 - 19:28:35 EST

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Message-id: <3BBD7D43.A24247A6@bluewin.ch>

R-help Digest wrote:

>
> Date: Thu, 04 Oct 2001 15:34:32 -0400
> From: Aravind Subramanian <aravind@genome.wi.mit.edu>
> Subject: [R] mutual information implementation
>
> Hi,
>
> is anyone aware of an R/S function or package that implements the mutual
> information (MI)
> approach to select/evaluate/reduce features before feeding into a neural
> network?
>
> Thanks,
>
> aravind
>

The function amif from the tseries package computes the mutual information. However, only in the context of time series (series vs. lagged series). However, it should be rather simple to call the underlying fortran function muin2ser from within R (have a look at the file tseries/src/muin2ser.f).

Best
Adrian

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