Dear list and Sir,
This is the first time I am reading this definition. Till now the books which i have read as student describes the original definition of nugget effect as
The value at the point at which a variogram model intersects the
vertical (gamma) axis on a variogram plot.
Is it possible to get the reference showing the so told definition of nugget variance?
Regards
Tanvi
On Tue, 07 Jun 2005 Colin Badenhorst wrote :
>Hi,
>
>
>
>I would like a few opinions on the definition of the "nugget effect".
>
>
>
>The value at the point at which a variogram model intersects the
>vertical (gamma) axis on a variogram plot is often called the "nugget
>effect". I have however, seen this definition being described as
>erroneous, and that this value is actually the "nugget variance".
>
>
>
>The "nugget effect" is described as the ratio of the random component of
>grade variation to the spatial component of grade variation, or in other
>words (assuming a model with 3 nested structures):
>
>
>
>Nugget Effect = C0 / C1+C2+C3
>
>
>
>Does anyone have any comments regarding this?
>
>
>
>Regards,
>
>Colin
>
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