"Ken Williams" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
| I've just uploaded a Decision Tree module to CPAN. It provides
| a pretty bare-bones implementation of the classic ID3 decision
| tree building algorithm.
Very interesting module. I will play with it in the newar future :)
| LIMITATIONS
| A few limitations exist in the current version. All of them could be
| removed in future versions - especially with your help. =)
I hope you count feedback as such!
| No continuous attributes
|
| In the current implementation, only discrete-valued attributes are
| supported. This means that an attribute like "temperature" can have
| values like "cool", "medium", and "hot", but using actual
| temperatures
| like 87 or 62.3 is not going to work.
[...]
I guess you could have a look at Robert Rothenbergs Tie::RangeHash module.
It should help a lot for numerics. Maybe you can just recommend its use in
the docs of your module.
Steffen
--
@n=(544290696690,305106661574,116357),$b=16,@c=' ,JPacehklnorstu'=~
/./g;for$n(@n){map{$h=int$n/$b**$_;$n-=$b**$_*$h;$c[@c]=$h}c(0..9);
push@p,map{$c[$_]}@c[c($b..$#c)];$#c=$b-1}print@p;sub'c{reverse @_}
