Hi Sheldon,
I'm not familiar with an ERR() function meaning "economic rate of
return". The @ERR() function in 1-2-3 merely returns the ERR error value,
much as NA() returns the NA error value.
So how to turn an IRR into an ERR? I suppose the joke answer would be
"Invest in sub-prime mortgages".
But seriously, my understanding is that Internal Rate of Return, as we
define it in OpenFormula, is the same as what some practioners call
"Economic Rate of Return".
-Rob
Sheldon Britton <> wrote on 06/04/2008 11:15:05 AM:
