Dear all,

I'm kriging data on pests and diseases in horticultural crops and find that there is often substantial geometric anisotropy. I use Paul Hiemstra's autoKrige function.

Manually, I can more or less tweak the parameters until the map looks right. However, that's too slow for routine use and the situation is not stable enough to use the same anisotropy parameters each time. Is there an automatic way of calculating the parameters?

In addition, I use different days as a third dimension, which in my mind raises the question "How many metres in a day?"  I am not sure that I could even recognize if I had selected the right parametres for the anisotropy of the third dimension. If there was an automatic way of calculating geometric-temporal anisotropy I would ideally like it to handle three dimensions. The data collected on different days is mostly not collected at the same points.

Lisbeth

 
Lisbeth R.i.i.s.
S-c-a-r-a-b  C-o-n-s-u-l-t


 
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