SPOT (version 2.11.10)

makeMoreFunList: makeMoreFunList

Description

Generate a list of benchmark functions. Based on the More(1981) paper. Contains the first 13 function from the paper. Function numbers are the same as in the paper.

Usage

makeMoreFunList(vector2Matrix = TRUE)

Arguments

vector2Matrix

logical. Convert vector input to matrix. Default: TRUE, so it can be used with optim.

Value

list of functions with starting points and optimum points.

References

More, J. J., Garbow, B. S., and Hillstrom, K. E. (1981). Testing unconstrained optimization software. ACM Transactions on Mathematical Software (TOMS), 7(1), 17-41. 10.1145/355934.355936

Examples

# NOT RUN {
# Generate function list.
# Here we use the default setting \code{vector2Matrix = TRUE},
# so the function list can be passed to \code{\link[stats]{optim}}.

fl <- makeMoreFunList()
optim(par=c(-1.2,1), fn=fl$funList[[1]])
optim(par=fl$startPointList[[1]], fn=fl$funList[[1]])$value
optim(par=fl$startPointList[[1]], fn=fl$funList[[1]],NULL, method = "CG", hessian = FALSE)$value
optim(fl$startPointList[[1]], fl$funList[[1]],NULL, method = "BFGS", hessian = FALSE)$value
optim(fl$startPointList[[1]], fl$funList[[1]],NULL, method = "L-BFGS-B", hessian = FALSE)$value

# }