Hi, AI-Geostats member
In Elliptic Anisotropy we suppose that the Sill parameter of Variogram is fixed and
the Range parametre is varying with direction, in an ellipce. But in practice, usually
Sill is also depends to direction (more or less). My question is that:
How can we estimate Sill and
How can we estimate Sill and Range in all
directions by supposing that the sill is fixed?
It is usual to fit the sill to an omni-directional
semi-variogram graph, since that has most pairs on all
points.
The ranges can then be fitted individually.
The alternate is to 'contour' the
Hi everybody! I know I am going to make a quite silly questions for people
who is used to work with krigging, but I am quite new, and after reading
three different books and talk to 2 or three people I am in a mess: is it
correct to interpolate data from a sample that doesn't follow a normal
What does your data look like after you take
logarithms? Is it still skewed? If you do a
probability plot does it drop off at the lower end? Or
at the top? or is it still curved? Or does it have a
kink in it?
Geostatistics is possible with any or all of the above
but the remedy differs according
Hello,
I'm helping someone with some spatial analyses for some data with plant
species data across a set of natural pools. We are trying to determine
whether there is spatial autocorrelation, but am not sure what test to
run.
At first I was advised that perhaps using the Moran's I index would
On Tue, 4 Sep 2001, Sue Rodriguez-Pastor wrote:
Hello,
I'm helping someone with some spatial analyses for some data with plant
species data across a set of natural pools. We are trying to determine
whether there is spatial autocorrelation, but am not sure what test to
run.
At first I was
