Mr. Macropod,

I'm working on it right now but 1 thing i noticed is that you used the Offset to set the range, making it what i would call 'dynamic range' or 'range variable'. Am I right?

Anyhow, i'll keep study the formula and test on other data sets and later (by this evening) i'll get back to you.

Thank you, Sensei...

Regards,
Udea