ans=list()
  ans$rho=1
  ans$outer.iter =50
  ans$inner.iter =1800
  ans$delta = 1.0e-8
  ans$tol=1.0e-8
  ans$trace=0

  ans =try(solnp(pars = params, fun = realgarLLH , eqfun = NULL,eqB =NULL,
                 LB=lowerBounds,UB=upperBounds,control=ans),silent=TRUE)


R语言利用solnp函数求解极大似然估计报错！！！！ 求解答
Error: $ operator is invalid for atomic vectors