Description Usage Arguments Value Author(s) References Examples

Recalls Jones and Nachtsheim's Definitive screening designs for 3-level factors and 3-level factors with added 2-level categorical factors.

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`m` |
input- an integer, the m=number of 3-level factors |

`c` |
input- an integer, the m=number of 2-level categorical factors, default is zero if not supplied |

`randomize` |
input - logical |

a data frame containing the definitive screening design with 3-level factors first followed by 2-level factors.

John Lawson

Jones, B. and Nachtsheim, C. J. (2011) "A Class of Three Level Designs for Definitive Screening in the Presence of Second-Order Effects", Journal of Quality Technology, Vol 43, No. 1, 2011, pp 1-15. Jones, B. and Nachtsheim, C. J. (2013) "Definitive Screening Designs with Added Two-Level Categorical Factors", Journal of Quality Technology, Vol 44, No. 2, 2013, pp. 121-129.

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