DS1 function

Sensitivity function of c-optimality criterion for the EDp

This evaluates the sensitivity function of the c-optimality criterion for the EDp at the given value of x.

DS1(T, x, inv, p, order)

Arguments

• T: A numeric vector. Model parameter values for the 5PL model
• x: A numeric. A given dose level
• inv: A numeric matrix. Inverse infromation matrix for the 5PL model
• p: A numeric. Define EDp
• order: numeric. The number of model paraemters