Intrusion Variogram  Derive Variance
When modeling intrusions and employing the variography, there is a "variance" reported at the top  how is this variance calculated? The data to model my intrusion is categorical so where numbers are coming is a mystery.
My only guess it is something to do with the interval lengths?
My only guess it is something to do with the interval lengths?
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Comments

Hi Michael,
For the intrusion tool Leapfrog generates numeric, volume points along the drillhole trace; zero values at the contact, positive values internally, and negative values externally. The variance number you see there is the variance of the clipped volume / value points. In this particular intrusive / categoric context there probably isn't that much value in the number since it is a global statistic from system generated values.
Regards,
David Watkins0