# (Re)Set W to identity, to allow several run from the same object
W <<- diag(d+d^2+d^3)
- loopMax <- 2 #TODO: loopMax = 3 ?
+ loopMax <- 2 #TODO: loopMax = 3 ? Seems not improving...
for (loop in 1:loopMax)
{
op_res = constrOptim( linArgs(θ0), .self$f, .self$grad_f,