pdMatrix {lme4} | R Documentation

## Return the positive-definite matrix

### Description

This generic function extracts the positive-definite matrix represented by `object`.

This function is deprecated. Use coersion to the `pdmatrix` class instead.

### Usage

    pdMatrix(object)

### Arguments

`object` | an object inheriting from class `pdMat`, representing a positive definite matrix, which must have been initialized (i.e. `length(coef(object)) > 0`).

### Value

A `pdmatrix` object.

### See Also

`pdmatrix-class`, `pdMat-class`

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