by Jerzy » Sun Mar 23, 2008 2:44 pm
Padawan,
Unfortunately, the Distinct Segment filter doesn't work properly, as you noticed.
I back tested the Distinct Segment filter for several settings.
For example: according to back testing for the unique 7 segments, there were 354 drawings with 7 distinct segments. But when I imported the segment patterns history from WNH --> Summary table --> Segments to Excel and calculated the occurrences, the result of calculation was that there were 340 drawings with 7 distinct segments. The result of calculation by Excel was correct, the result of back testing by the filter wasn't. In some cases back testing reported that the distinct segment count was 7 when in fact it was 8.
Most commonly back testing gives correct result, but the result should be always correct and reliable. Probably this filter doesn't recognize correctly certain segment patterns.
Unfortunately, we can't rely too much on this filter until it is fixed.
This is a powerful filter which deserves to be fixed.
Jerzy