affineScalingGrad: Gradient of the Scaling function (affine case)
In IRSN/DiceKriging: Kriging Methods for Computer Experiments
Description
Usage
Arguments
Value
References
See Also
Description
Gradient of the Scaling function (marginal in dimension k) of Xiong et al. with respect to eta
Usage
1
affineScalingGrad(X, knots, k)
Arguments
X
an n*d matrix standing for a design of n experiments in d-dimensional space
knots
a (K+1) vector of knots parametrizing the transformation. The knots are here the same in all dimensions.
k
dimension of the input variables for which the gradient is calculated
Value
Gradient at X of the scaling transformation of Xiong et al. with respect to eta. In the present version of the function, the gradient calculation is restricted to the case of 2 parameters by dimension (corresponding to the CovAffineScaling class).
References
Y. Xiong, W. Chen, D. Apley, and X. Ding (2007), Int. J. Numer. Meth. Engng, A non-stationary covariance-based Kriging method for metamodelling in engineering design.
See Also
IRSN/DiceKriging documentation built on May 8, 2019, 1:25 p.m.
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Description Usage Arguments Value References See Also
Description
Gradient of the Scaling function (marginal in dimension k) of Xiong et al. with respect to eta
Usage
1 | affineScalingGrad(X, knots, k)
|
Arguments
X |
an n*d matrix standing for a design of n experiments in d-dimensional space |
knots |
a (K+1) vector of knots parametrizing the transformation. The knots are here the same in all dimensions. |
k |
dimension of the input variables for which the gradient is calculated |
Value
Gradient at X of the scaling transformation of Xiong et al. with respect to eta. In the present version of the function, the gradient calculation is restricted to the case of 2 parameters by dimension (corresponding to the CovAffineScaling class).
References
Y. Xiong, W. Chen, D. Apley, and X. Ding (2007), Int. J. Numer. Meth. Engng, A non-stationary covariance-based Kriging method for metamodelling in engineering design.
See Also
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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