RapidMiner 9.8 Beta is now available
Be one of the first to get your hands on the new features. More details and downloads here:
1) alpha bravo
2) alpha bravo
3) alpha bravo charlie delta
4) alpha bravo charlie delta
How is the "statistic" field calculated in the Meta data view output here? Is the mean here the calculation the td/idf measure (f[ij] / f[dj] * log( D / f )?
When I run it on "charlie" from above, RapidMiner gives 0.354. When I run the calculation by hand 1/4 * log( 4 / 2 ) I get 0.075. Is this normalized somehow or is the log the natural log or base 2?
Thank you for any input.