Lea,

This web site looks like it might have the Excel calculation that you're
looking for:

http://geology.asu.edu/~glg410/2000/...ingSolver.html

----
Regards,
John Mansfield
http://www.pdbook.com

"Lea Olsen" wrote:

Hello,

does anyone know what the formula for calculating root mean square (RMS)
error is? Can this be done in Excel?

Thanks,