I'm still confused with Rev Chron however. It is a Volume Test, not specific to a lat formation. I'm not seeing the difference between Rev Chron and Repeat. Rev Chron, volume testing of ANY measurable that is NOT a repeat, I don't know If I understand what to do.
Rev chron is the process of checking for a Repeat. The process of checking each prior cell in the VTP for a "repeat" is rev chron. That's what the arrows pointing right to left as superscript in cell above "T" or "F" are for. Starting at P2 as false, T1 as false, P1 as false, the superscript arrow then makes a counterclockwise loop around the "collected" falses, passes underneath and points to "next" in the OOE which in this case is T2P as true.
Using your 4-bar example, P1, T1, T1, P2.... Bar 2 has DV in relation to bar 1. It is not a repeat of bar 1, a P1. P1 being the start of a sequence, there is nothing else to Rev Chron, Bar 2 is ID'd as T1 and the volume test of bar 2 stops.
Yes, to make it clearer let this example NOT be a lateral.
At rev chron on the bar2, one marks on the current row, column P1 a "F" with a left to right superscript arrow. Since this is "F", the arrow loops around ccw and points to the next cell which is a T1 column and therefore gets a "T". Since we've progressed the trend to a T1, P1 is gated with an "X" in the cell.
At rev chron on bar3, one marks on the current row, column T1 a "T" with a left to right superscript arrow.
At rev chron on bar4, one marks on the current row, column T1 a "F" with a left to right superscript arrow at cell T1. Since this is a T1, and a T1 has presented itself earlier, then the P1 cell gets an "X". It's enough to remind us that a P1 does not come after a T1. We have to get to P2 before P1 can occur again.
Bar4 on the log, would look like P1 "X", T1 "F", P2 "T". The T1 cell would have a ccw arrow around the "F" and the arrow would point to the "T" in cell P2 as a gesture for "next".
Bar 3, has equal or DV in relation to bar 2, a T1. There is no P2 as of yet, so a repeat (NEW) T1 is allowed, bar 3 is ID'd as T1, the volume test for bar 3 stops. Bar 4, has IV in relation to bar 3. With IV, it cannot be a repeat of T1. Begin Rev Chron... Since bar 2 is also a T1 and it has been determined that bar 4 can not be a repeat T1, Rev Chron moves to bar 1, a P1. P1 is killed, suppressed, not allowed, after a T1. Bar 4 is ID'd as P2 and the volume test of bar 4 stops. Is this correct??
Yes.
bar1 P1 "T"
bar2 P1 "F", T1 "T"
bar3 P1 " ", T1 "T"
bar4 P1 "X", T1 "F", P2 "T"
if bar5 is a T2P, then the next line in the log;
P1 "F", T1 "F", P2 "F", T2P "T"
If bar5 is a P2, then;
P1 " ", T1 " ", P2 "T"
If bar5 is greater than the first P1, then;
P1 "T", T1 "F", P2 "F"
RDBMS gets validated when we assign P1's. Assigning P1's is where this stuff really shines.
HTH
