else if (!is.numeric(θ0$b) || length(θ0$b) != K || any(is.na(θ0$b)))
stop("θ0$b: length K, no NA")
# TODO: stopping condition? N iterations? Delta <= epsilon ?
else if (!is.numeric(θ0$b) || length(θ0$b) != K || any(is.na(θ0$b)))
stop("θ0$b: length K, no NA")
# TODO: stopping condition? N iterations? Delta <= epsilon ?
{
op_res = constrOptim( linArgs(θ0), .self$f, .self$grad_f,
ui=cbind(
rbind( rep(-1,K-1), diag(K-1) ),
matrix(0, nrow=K, ncol=(d+1)*K) ),
ci=c(-1,rep(0,K-1)) )
{
op_res = constrOptim( linArgs(θ0), .self$f, .self$grad_f,
ui=cbind(
rbind( rep(-1,K-1), diag(K-1) ),
matrix(0, nrow=K, ncol=(d+1)*K) ),
ci=c(-1,rep(0,K-1)) )