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  conjugate-gradient algorithms. It includes an option for
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  conjugate-gradient algorithms. It includes an option for
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  box-constrained optimization and simulated annealing.
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  box-constrained optimization and simulated annealing.
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}
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}
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\usage{
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\usage{
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optim(par, fn, gr = NULL, \dots,
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optim(par, fn, gr = NULL, \dots,
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      method = c("Nelder-Mead", "BFGS", "CG", "L-BFGS-B", "SANN", "Brent"),
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      method = c("Nelder-Mead", "BFGS", "CG", "L-BFGS-B", "SANN",
- 
 
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                 "Brent"),
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      lower = -Inf, upper = Inf,
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      lower = -Inf, upper = Inf,
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      control = list(), hessian = FALSE)
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      control = list(), hessian = FALSE)
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optimHess(par, fn, gr = NULL, \dots, control = list())
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optimHess(par, fn, gr = NULL, \dots, control = list())
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}
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}