[R] Classification Analysis

[ozric@web.de]

Rishabh,
Software which extract rules from data are my main "WorkingField" but
it's to bad that in present nothing rule generating algorithm (package) exist.
I do my best to get R programming skills until end2002 for my contribution in data-mining package development,because R is a great basic for this.

Some nice free-software ressources ( not R ) for this purpose are:
http://www.cs.waikato.ac.nz/ml/weka/    (look C4.5Part for rule generating)
http://fuzzy.cs.uni-magdeburg.de/~borgelt/software.html#dtree   
(that's for you probably interesting, because it's very fast C4.5 implementation and you can use in lot of way prune to
reduce the complexity 750 variables!)

http://fuzzy.cs.uni-magdeburg.de/nefclass/nefclass.html  


Or my present favorit  from J.Mortensen (it's great)  when you want analyse your data
with fuzzy strategies..........
http://inet.uni2.dk/~jemor/jfs.htm

P.S.
One question - i make electronic music with ComputerSoftware,too
and i'm statistican - what are the 750 variables and what is your classification criterium ? (if it is not a secret !)
regards,christian




Am 16.04.2002 17:13:39, schrieb "Rishabh Gupta" <rg117 at ohm.york.ac.uk>:
>Hi everyone,
>    Could somebody explain to me what is the package/function for
>classification analysis. I am performing analysis of music files in the form
>of MIDI files. I end up with about 750 dependent variables from the
>analysis, I also have a number of independent/grouping variables that I set
>manually. What I would like is to be able to predict which group a
>particular MIDI files belongs to given the 750 dependent variables. In order
>to this I have to perform classification analysis on a sample set of MIDI
>files where I know what group they belong to. I want to extract the
>'classification rule' that would enable me to predict the group of each MIDI
>file (there would be a different classification rule for each grouping
>variable). Can anybody explain what is the best way of doing this in R. What
>is the best package/function that would enable me to perform classification
>analysis.
>
>Any help would be greatly appreciated.
>
>Many Thanks For Your Help!
>
>Rishabh
>
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