ABSTRACT
So all results obtained for the AFT model with time-dependent explanatory variables can be rewritten for the AFT model with time dependent regression coefficients and constant or time dependent explanatory variables. In all formulas
m, β = (β1, · · · , βm)T , x(i)(·) = (x(i)1 (·), · · · , x(i)m (·))T
must be replaced by
2m, θ = (β1, · · · , βm, γ1, · · · , γm)T , z(i)(·) = (x(i)1 (·), · · · , x(i)m (·), x(i)1 (·)g1(·), · · · , x(i)m (·)gm(·))T
respectively.
