An S4 class to represent a smooth supersaturated model
dimension
A number indicating the number of variables in the design.
design
A matrix with rows indicating the design point and columns indicating the variable.
design_size
A number indicating the number of design points.
response
A design_size
length vector of responses.
theta
A vector containing the fitted model coefficients.
basis
A matrix with each row being the exponent vector of a polynomial term.
basis_size
A number indicating the number of basis terms used in the
model. This may be different from nrow(basis)
if terms are excluded.
include
A vector containing the row numbers of the basis polynomials used in the model. This is used when interactions or variables are being excluded from the model.
K
A semi-positive definite matrix that defines the smoothing criteria.
P
A matrix that defines the polynomial basis in terms of a monomial basis.
design_model_matrix
A matrix.
variances
A vector of length basis_size
containing the term
variances.
total_variance
A length one vector containing the total variance.
main_sobol
A dimension
length vector containing the Sobol
index for each variable.
main_ind
A logical matrix indicating whether each term is included in the main effect corresponding to the column.
total_sobol
A dimension
length vector containing the Total
sensitivity index for each variable.
total_ind
A logical matrix indicating whether each term is included in the Total sensitivity index corresponding to the column.
int_sobol
A vector containing the Sobol index for interactions.
int_factors
A list of length the same as int_sobol
indicating
which interaction corresponds with each entry in int_sobol
.
total_int
A vector containing the Total interaction indices of all second order interactions.
total_int_factors
A matrix where each row indicates the variables
associated with the corresponding interaction in total_int
.
distance
A matrix containing the distances used for computing the covariance matrix of the GP metamodel error estimate.
distance_type
A character defining the distance type used for computing
distance
. Can be one of "distance", "line", "product", "area",
"proddiff", or "smoothdiff".
type
A character, either "exp", "matern32", that selects the correlation function used for the GP metamodel error estimate.
covariance
A positive definite matrix. The covariance matrix of the GP
metamodel error estimate prior to scaling by sigma
.
residuals
A design_size
length vector containing the
Leave-One-Out errors of the model at each design point.
sigma
A number indicating the scaling factor for covariance
.
r
A number indicating the length factor for the correlation function.
local_smoothness
A design_size
length vector containing the
model smoothness at each design point.
LOO_RMSE
A number. The Leave-One-Out root mean square error.
legendre
logical. Indicates whether the default Legendre polynomial basis is being used.
fail
logical. Indicates whether the model fit was successful.
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