summary.gt {binGroup} | R Documentation |

## Summary Method for Group Testing Model (Simple Pooling) Fits

### Description

Produce a summary list for objects of class `"gt"` returned by `gtreg`.

### Usage

```
## S3 method for class 'gt'
summary(object, ...)
```

### Arguments

`object` |
a fitted object of class |

`...` |
currently not used. |

### Details

`print.summary.gt` is the print function that formats the coefficients, standard errors, etc. and additionally gives 'significance stars' if `signif.stars` is `TRUE`. The `coefficients` component of the result gives the estimated coefficients and their estimated standard errors, together with their ratio. This third column is labeled `z ratio` using Wald tests. A fourth column gives the two-tailed p-value corresponding to the z ratio based on a Wald test. (It is possible that there are no residual degrees of freedom from which to estimate it. In that case the estimate is `NaN`.)

### Value

`summary.gt` returns an object of class `"summary.gt"`, a list with components

`call` |
the component from |

`link` |
the component from |

`deviance` |
the component from |

`aic` |
the component from |

`df.residual` |
the component from |

`null.deviance` |
the component from |

`df.null` |
the component from |

`deviance.resid` |
the deviance residuals: see |

`coefficients` |
the matrix of coefficients, standard errors, z-values and p-values. Aliased coefficients are omitted. |

`counts` |
the component from |

`method` |
the component from |

`cov.mat` |
the estimated covariance matrix of the estimated coefficients. |

### Author(s)

Boan Zhang

### See Also

`gtreg`

for creating an object of class `"gt"`,
and `print.summary.gt`

for some options of changing the print out following `summary.gt`.

### Examples

```
## --- Continuing the Example from '?gtreg':
data(hivsurv)
fit1 <- gtreg(formula = groupres ~ AGE + EDUC., data = hivsurv,
groupn = gnum, sens = 0.9, spec = 0.9, method = "Xie")
summary(fit1)
```

*binGroup*version 2.2-1 Index]