dmkai3
05-18-2011, 01:18 PM
I'm trying to understand how HEM calculates standard deviation. I adjusted filters for only 7 hands so I can try to duplicate HEM's calculation.
http://i.imgur.com/y0Llv.png
But the actual stdev for {0, 4.13, 1.5, 0, 1.5, 0 ,1.5} is 1.48. How does HEM come up with 14.14?
edit: I think HEM St Dev is in bb/100.
edit 2: I readjusted the filter to use exactly 100 hands. I calculated St Dev based on bbs won/lost (lost = negative) and got 3.97 vs HEM's 38.39. In both calculations HEM is greater, by a factor of ~10. I still don't get what HEM is doing.
http://i.imgur.com/y0Llv.png
But the actual stdev for {0, 4.13, 1.5, 0, 1.5, 0 ,1.5} is 1.48. How does HEM come up with 14.14?
edit: I think HEM St Dev is in bb/100.
edit 2: I readjusted the filter to use exactly 100 hands. I calculated St Dev based on bbs won/lost (lost = negative) and got 3.97 vs HEM's 38.39. In both calculations HEM is greater, by a factor of ~10. I still don't get what HEM is doing.