vcov

vcov.JMMLSM

Extract variance-covariance matrix for joint models.

Maximum likelihood estimation for the semi-parametric joint modeling of competing risks and longitudinal data in the presence of heterogeneous within-subject variability, proposed by Li and colleagues (2023) <arXiv:2301.06584>.
The proposed method models the within-subject variability of the biomarker and associates it with the risk of the competing risks event. The time-to-event data is modeled using a (cause-specific) Cox proportional hazards regression model with time-fixed covariates.
The longitudinal outcome is modeled using a mixed-effects location and scale model. The association is captured by shared random effects. The model
is estimated using an Expectation Maximization algorithm.

Shanpeng Li

Joint Model of Heterogeneous Repeated Measures and Survival Data

Jin Zhou

Hua Zhou

Gang Li

vcov function

<dl><dt>object</dt>
<dd>an object inheriting from class <code>JMMLSM</code>.</dd>
<dt>...</dt>
<dd>further arguments passed to or from other methods.</dd></dl>

Arguments

Shanpeng Li <a href="/link/lishanpeng0913%40ucla.edu?package=JMH&version=1.0.3" data-mini-rdoc="JMH::lishanpeng0913@ucla.edu">lishanpeng0913@ucla.edu</a>

Author

Variance-covariance matrix of the estimated parameters for joint models — vcov

<dl>

<dt>object</dt>
<dd>an object inheriting from class <code>JMMLSM</code>.</dd>


<dt>...</dt>
<dd>further arguments passed to or from other methods.</dd>

</dl>

Shanpeng Li <a href='mailto:lishanpeng0913@ucla.edu'>lishanpeng0913@ucla.edu</a>

vcov: Variance-covariance matrix of the estimated parameters for joint models

Description

Usage

Value

Arguments

Author

See Also