> I have many questions relate of the universal kriging.
> 
> Someone can tell my:
> 
> The variogram we most to use is these create with the residuals (mainly
> spline residuals)?
> 
> My preoccupation is relate with the magnitude of the estimation variance,
> it is underestimate if I use residual variogram?
> 
> In these case is possible reconvert the residual variogram to wall
> variogram by addition of the effect of drift previously calculate?
> 
> The case is that variogram create whit untransformed data is inconsistent
> by the presence of the inner drift.  
> 
> King regards
> 
> Adrian Mart�nez Vargas
> Ing. Ge�logo (profesor)
> Instituto Superior Minero Metal�rgico (ISMM)
> Las Coloradas, s/n
> Reparto Caribe.
> Moa, Holgu�n, Cuba
> CP 83329
> E. Mail 
> [EMAIL PROTECTED] 
>  
> 

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