The function computes the derivative of a correlation matrix using 1-dimensional power exponential correlation function, with regard to the inverse range parameter.
pow_exp_deriv(R0_i, R, beta_i, alpha_i)
A matrix in which each element is the derivative of 1-dimensional power exponential correlation function with regard to the inverse range parameter.
an absolute difference matrix of the i-th input vector.
the correlation matrix.
the inverse range parameter.
the roughness parameter.
tools:::Rd_package_author("RobustGaSP")
Maintainer: tools:::Rd_package_maintainer("RobustGaSP")
pow_exp_funct
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