User talk:Winrwinrchkndinr

Hey, I moved your edits on the Weight Watchers page to the talk page since you did not provide any citation and there is no known patent with the PointsPlus Activity Point formulas. Wikiarthurb (talk) 06:37, 15 July 2011 (UTC)

My only citation is my own "reverse engineering" research. Since the only variables in the AP+ calculation are level, weight and time, finding a multiplying factor is relatively easy. How did I do this? I went to WW and plugged in all of the times from 0 to 90 minutes for each level (I believe I used 4 or 5 iterations) weight intervals and put them all in a spreadsheet. Then, to find the factor, I divided the AP+ number that WW gave me by the quantity (weight * time). While this gave a small range of numbers, I took an average of those numbers. Seeing that the new P+ calculation included a round function, I assume this would also be the case with the AP+ calculation. Going from there, I continually tweaked the multiplying factor until the equations worked for additional 0-90 minutes at additional weight intervals for all (3) intensity levels. Do I know for a fact that all of these numbers are 100% correct? No. They may be off by one or two millionths given a larger sample size (like 0-1000 minutes and every weight). For the ranges that I worked with (all intensity levels, 0-90 minutes, at multiple weight intervals) these values gave me correct results compared to the official WW AP+ calculator. Winrwinrchkndinr (talk) 10:57, 25 July 2011 (UTC)