Description Usage Arguments Value Author(s) References

This function extracts the full covariance matrices from a mixed/hierarchical
linear model fit using `lme`

.

1 |

`b` |
a fitted model object of class |

A list of matrices is returned.

`D`

contains the covariance matrix of the random effects.`V`

contains the covariance matrix of the response.`X`

contains the fixed-effect model matrix.`Z`

contains the random-effect model matrix.

Adam Loy loyad01@gmail.com

This method has been adapted from the method
`mgcv::extract.lme.cov`

in the `mgcv`

package, written by Simon
N. Wood simon.wood@r-project.org.

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