Re: Advice on evaluation

[cesczx@xxxxxxxxxxxxxxxxxx (Chen Zhixing)]

>
>I like Mark's idea of averaging the two values.  I think will give a more
>accurate evaluation.
>
   I always use the average, or statistical value.
   I was a chemist.  I used to express a result like   a +/- d,  where a is
the average and d is the deviation.  In goe programming, there might be two
estimations a1 and a2, where a1 is the pessimistic evaluation, and a2 is the
optimistic evaluation. Thus
        a = (a1+a2)/2,   d = abs(a2-a)  or   d = sqrt(((a2-a)^2+(a1-a)^2)/2)
   a is the value in the evaluation function.  My problems are:
   1) how to get the values of a1 and a2
   2) how to utilize the value d.

Chen Zhixing
www.wulu.com