What you see is the range parameter; as the Gaussian model reaches the
sill asymptotically, the value sqrt(3) * a is often used as the
effective range, or distance value where 95% of the (partial) sill is
reached. Just plot the curve of 1-exp(-(h/a)^2) to see why this is so.
On 08/09/2010 05:06
I have a follow up question regarding the range parameter specified for
the gaussian variogram model in gstat..
First, thank you to Jaime Grion who riplied...
Dear Kerry, if you write in the option model Gau you just have to
specify 200 [for the range].
However, when I fit the variogram
Hi all. I have what I hope is a quick question concerning the use of
fit.variogram ingstat. If you assume a a Spherical model for the
variogram and the estimated range is say 200m and then you switch models
to a Gaussian but want to keep the range fixed at 200m, would you
specify 200 for the
