Description Usage Arguments Value Examples

Stepwise selection of covariates

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`y` |
Dependent variable |

`x` |
Covariates |

`p0` |
The P-value cut-off |

`nu` |
The order statistic of Gaussian covariates used for comparison |

`kmn` |
The minimum number of included covariates irrespective of cut-off P-value |

`kmx` |
The maximum number of included covariates irrespective of cut-off P-value. |

`mx` |
The maximum number covariates for an all subset search |

`kex` |
The excluded covariates |

`sub` |
Logical if TRUE best subset selected |

`inr` |
Logical if TRUE include intercept if not present |

`xinr` |
Logical if TRUE intercept already present |

`qq` |
The number of covariates to choose from. If qq=0 the number of covariates of x is used. |

pv In order the included covariates, the regression coefficient values, the Gaussian P-values, the standard P-values and the proportional reduction in the sum of squared residuals due to this covariate

res The residuals

stpv The in order stepwise P-values, sum of squared residuals and the proportional reduction in the sum of squared residuals due to this covariate.

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