Description Usage Arguments Value Author(s) See Also Examples

This function does a selective test for group structures
(test whether the regression coefficients indexed by `g`

is all zero or not)
from an `"outference"`

object.

1 |

`object, ` |
an object of class |

`group, ` |
a vector indicating which group to test. The intercept is labelled as |

This function returns a list with the following components:

`statistic, ` |
the value of the chi-squared statistic or |

`df, ` |
the degree(s) of freedom. |

`truncation, ` |
the truncation set for the statistic. |

`pval, ` |
the corrected p-value. |

Shuxiao Chen <[email protected]>

`coeftest`

for testing for a single regression coefficient
from an `"outference"`

object.

1 2 3 4 5 6 | ```
## Brownlee’s Stack Loss Plant Data
data("stackloss")
## fit the model
## detect outlier using Cook's distance with cutoff = 4
fit <- outference(stack.loss ~ ., data = stackloss, method = "cook", cutoff = 4)
grptest(fit, 2:4)
``` |

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