Doptimize: Wrapper function for OApackage Doptimize function.

In oapackage: Orthogonal Array Package

Description

This function generates a single 2-level design with the specified number of runs and factors. The design is optimized for the criterium that is specified by the parameters alpha_i.

Usage

Doptimize(N, k, nrestarts, alpha1 = 1, alpha2 = 0, alpha3 = 0,
  verbose = 1, method = 0, niter = 1e+05, maxtime = 500)

Arguments

N	Number of runs
k	Number of factors
nrestarts	Number of restarts to generated an optimal design
alpha1	Parameter of the optimization function
alpha2	Parameter of the optimization function
alpha3	Parameter of the optimization function
verbose	Integer that determines the amount of debug output
method	Integer, default: 0. The method 0 uses updates of single elements of the design matrix. The method 1 uses swaps of 2 elements of the matrix.
niter	Integer (maximum number if iteration steps in the optimization)
maxtime	Float (maximum running time before aborting the optimization)

Details

The criterium that is optimized is: F = alpha1*D + alpha2*Ds + alpha3 * D1

Here D is the D-efficiency of the design and Ds and D1 other efficiency measures. The values alpha_i are scalar parameters. For more details see http://pietereendebak.nl/oapackage/Doptim.html

Value

A matrix containing the generated design

oapackage documentation built on May 29, 2017, 11:03 p.m.