\name{nlrq.control} \alias{nlrq.control} \title{ Set control parameters for nlrq } \description{ Set algorithmic parameters for nlrq (nonlinear quantile regression function) } \usage{ nlrq.control(maxiter=100, k=2, InitialStepSize = 1, big=1e+20, eps=1e-07, beta=0.97) } \arguments{ \item{maxiter}{maximum number of allowed iterations} \item{k}{the number of iterations of the Meketon algorithm to be calculated in each step, usually 2 is reasonable, occasionally it may be helpful to set k=1 } \item{InitialStepSize}{ Starting value in \code{optim} to determine the step length of iterations. The default value of 1 is sometimes too optimistic. In such cases, the value 0 forces optim to just barely stick its toe in the water.} \item{big}{ a large scalar} \item{eps}{ tolerance for convergence of the algorithm } \item{beta}{ a shrinkage parameter which controls the recentering process in the interior point algorithm. } } \seealso{ \code{\link{nlrq}} } \keyword{ environment}