Re: Hurst Exponent

[DH <catapult@xxxxxxxxxxxxxxxxxx>]

Oops, Len=1 will still give you a divide by zero error. Log(1)=0. So,
try...

If Rng>0 and k>0 and Scale>0 and Len>1 then
  Hurst = Log(Rng/(k * Scale)) / Log(Len);

-- 
  Dennis


I wrote:
> 
> > Hurst = Log(Rng/(k * Scale)) / Log(Len);
> 
> It's always a good idea to check for zero with any input or var that can
> make your calc puke. In this case, any of the 4 terms could do it. You
> also can't take the log of a negative number. So.....
> 
> If Rng>0 and k>0 and Scale>0 and Len>0 then
>   Hurst = Log(Rng/(k * Scale)) / Log(Len);