summary.pdMat {nlme} | R Documentation

## Summarize a pdMat Object

### Description

Attributes `structName` and `noCorrelation`, with the values of the corresponding arguments to the method function, are appended to `object` and its class is changed to `summary.pdMat`.

### Usage

    ## S3 method for class 'pdMat'
    summary(object, structName, noCorrelation, ...)

### Arguments

`object` | an object inheriting from class `"pdMat"`, representing a positive definite matrix.

`structName`

an optional character string with a description of the `pdMat` class. Default depends on the method function: `"Blocked"` for `pdBlocked`, `"Compound Symmetry"` for `pdCompSymm`, `"Diagonal"` for `pdDiag`, `"Multiple of an Identity"` for `pdIdent`, `"General Positive-Definite, Natural Parametrization"` for `pdNatural`, `"General Positive-Definite"` for `pdSymm`, and `data.class(object)` for `pdMat`.

`noCorrelation` | an optional logical value indicating whether correlations are to be printed in `print.summary.pdMat`. Default depends on the method function: `FALSE` for `pdDiag` and `pdIdent`, and `TRUE` for all other classes.
`...` | some methods for this generic require additional arguments. None are used in this method.

### Value

an object similar to `object`, with additional attributes `structName` and `noCorrelation`, inheriting from class `summary.pdMat`.

### Author(s)

José Pinheiro and Douglas Bates bates@stat.wisc.edu

### See Also

`print.summary.pdMat`, `pdMat`

### Examples

    summary(pdSymm(diag(4)))

[Package nlme version 3.1-131 Index]