altopt.rc {ALTopt} | R Documentation |

`altopt.rc`

creates D, U or I optimal design
of the accelerated life testing with right censoring plan.

altopt.rc( optType, N, tc, nf, alpha, formula, coef, useCond, useLower, useUpper, nOpt = 1, nKM = 30, nCls = NULL )

`optType` |
the choice of |

`N` |
the number of test units. |

`tc` |
the censoring time. |

`nf` |
the number of stress factors. |

`alpha` |
the value of the shape parameter of Weibull distribution. |

`formula` |
the object of class formula which is the linear predictor model. |

`coef` |
the numeric vector containing the coefficients of each term in |

`useCond` |
the numeric vector of use condition.
It should be provided when |

`useLower` |
the numeric vector of lower bound of use region.
It should be provided when |

`useUpper` |
the numeric vector of upper bound of use region.
It should be provided when |

`nOpt` |
the number of repetition of optimization process. Default is 1. |

`nKM` |
the number of repetition of k-means clustering. Default is 20. |

`nCls` |
the number of clusters used for k-means clustering. If not specified, it is set as the number of parameters in the linear predictor model. |

A list with components

call: the matched call.

opt.design.ori: the original optimal design.

opt.value.ori: the objective function value of

`opt.design.ori`

.opt.design.rounded: the optimal design clustered by rounding in third decimal points.

opt.value.rounded: the objective function value of

`opt.design.rounded`

.opt.design.kmeans: the optimal design clustered by

`kmeans`

.opt.value.kmeans: the objective function value of

`opt.design.kmeans`

.

Monroe, E. M., Pan, R., Anderson-Cook, C. M., Montgomery, D. C. and
Borror C. M. (2011) A Generalized Linear Model Approach to Designing
Accelerated Life Test Experiments, *Quality and Reliability Engineering
International* **27(4)**, 595–607

Yang, T., Pan, R. (2013) A Novel Approach to Optimal Accelerated Life Test
Planning With Interval Censoring, *Reliability, IEEE Transactions on*
**62(2)**, 527–536

## Not run: # Generating D optimal design for right censoring. altopt.rc("D", 100, 100, 2, 1, formula = ~ x1 + x2 + x1:x2, coef = c(0, -4.086, -1.476, 0.01)) # Generating U optimal design for right censoring. altopt.rc("D", 100, 100, 2, 1, formula = ~ x1 + x2 + x1:x2, coef = c(0, -4.086, -1.476, 0.01), useCond = c(1.758, 3.159)) # Generating I optimal design for right censoring. altopt.rc("D", 100, 100, 2, 1, formula = ~ x1 + x2 + x1:x2, coef = c(0, -4.086, -1.476, 0.01), useLower = c(1.458, 2.859), useUpper = c(2.058, 3.459)) ## End(Not run)

[Package *ALTopt* version 0.1.2 Index]