correcting value vs random value


pt = 0.5

val = rnd [0 to 1]




if val > pt output = a, otherwise output = b


if pt > 0.5

	if output = a
			pt = 1 - (1-pt)*.99

	else
			pt = 1 - (1-pt)*1.01
	
else

	if output = a
		pt = pt*1.01
	else
		pt = *.99



corrects towards a mean in radom paths rather than widely diverging

constants 0.99, 1.01 specify agression of correction

check 0.99, 1.01 values for unbiased results