d1 | R Documentation |
Returns an element related to an integral of a derivative of the desired kernel. See references for details.
d1(X, x, sigma, type)
X |
The design matrix |
x |
The point at which to evaluate. |
The |
error variance of the model. |
A |
string, one of "Gaussian", "Matern5_2", and "Matern3_2" indicating the covariance kernel to use. |
The scalar value given the integrated derivative.
Mickael Binois, Robert B. Gramacy, Michael Ludkovski (2017), Practical Heteroscedastic Gaussian Process Modeling for Large Simulation Experiments, Journal of Computational and Graphical Statistics
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