in reply to Machine Learning and Perl

> Update: I am looking for data prediction in the case I have 3 columns of data and it should predict the 4th column based on learning. ( I can feed thousands of rows with 4 columns to begin with).

What kind of data???

This might help

Cheers Rolf
(addicted to the Perl Programming Language and ☆☆☆☆ :)
Wikisyntax for the Monastery

PS: In case of words try weighted word frequency approaches.

Update

like term frequency–inverse document frequency ...

In Section Seekers of Perl Wisdom