V2 {calibrator}  R Documentation 
distance between observation points
Description
distance between observation points
Usage
V2(x, other = NULL, phi)
Arguments
x 
Matrix whose rows are observation points 
other 
Second matrix; if 
phi 
Hyperparameters 
Details
This function returns the variance matrix of observations of the real
process z
at points
D_2=\left\{x_1,\ldots,x_n\right\}
.
It appears in the lower right corner of the variance matrix on the
bottom of page 1 of the supplement, calculated by function
Vd()
.
It is also used in functions Cov.eqn9.supp()
and
V.fun()
.
Author(s)
Robin K. S. Hankin
References

M. C. Kennedy and A. O'Hagan 2001. Bayesian calibration of computer models. Journal of the Royal Statistical Society B, 63(3) pp425464

M. C. Kennedy and A. O'Hagan 2001. Supplementary details on Bayesian calibration of computer models, Internal report, University of Sheffield. Available at http://www.tonyohagan.co.uk/academic/ps/calsup.ps

R. K. S. Hankin 2005. Introducing BACCO, an R bundle for Bayesian analysis of computer code output, Journal of Statistical Software, 14(16)
See Also
Examples
data(toys)
V2(D2.toy,other=NULL, phi=phi.toy)
V2(D2.toy,x.vec,phi=phi.toy)