S_weight

A numeric vector. K dose levels for a given design

A numeric vector. Model parameter values

Numeric. Threshold to stop the iteration.

A character. D_weight for D-optimal weight; c_weight for c-optimal weight; DD_weight for Ds-optimal weight

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Newton Raphson method to get optimal weights for given design points "X".

Obtain and evaluate various optimal designs for the 3, 4, and 5-parameter logistic models. The optimal designs are obtained based on the numerical algorithm in Hyun, Wong, Yang (2018) <doi:10.18637/jss.v083.i05>.

S_weight: Newton Raphson method to get optimal weights

Description

Usage

Arguments