vcov.ate

Variance covariance matrix for the estimated average treatment effect.

Implementation of the following methods for event history analysis.
Risk regression models for survival endpoints also in the presence of competing
risks are fitted using binomial regression based on a time sequence of binary
event status variables. A formula interface for the Fine-Gray regression model
and an interface for the combination of cause-specific Cox regression models.
A toolbox for assessing and comparing performance of risk predictions (risk
markers and risk prediction models). Prediction performance is measured by the
Brier score and the area under the ROC curve for binary possibly time-dependent
outcome. Inverse probability of censoring weighting and pseudo values are used
to deal with right censored data. Lists of risk markers and lists of risk models
are assessed simultaneously. Cross-validation repeatedly splits the data, trains
the risk prediction models on one part of each split and then summarizes and
compares the performance across splits.

Thomas Alexander Gerds

riskRegression

Risk Regression Models and Prediction Scores for Survival
Analysis with Competing Risks

Johan Sebastian Ohlendorff

Paul Blanche

Rikke Mortensen

Marvin Wright

Nikolaj Tollenaar

John Muschelli

Ulla Brasch Mogensen

Asbjørn Risom

Brice Ozenne

vcov.ate function

<dl><dt>object</dt>
<dd>A <code>ate</code> object, i.e. output of the <code>ate</code> function.</dd>
<dt>contrasts</dt>
<dd>[character vector] levels of the treatment variable for which the variance-covariance matrix should be assessed. Default is to consider all levels.</dd>
<dt>times</dt>
<dd>[numeric vector] The timepoints at which the variance-covariance matrix should be displayed. Default is to consider all timepoints.</dd>
<dt>estimator</dt>
<dd>[character] The type of estimator relative to which the variance-covariance matrix should be displayed.</dd>
<dt>type</dt>
<dd>[character] should the variance-covariance matrix w.r.t. the average risk per treatment be displayed (<code>"meanRisk"</code>),
or the difference in average risk between any two pairs of treatments (<code>"diffRisk"</code>),
or the ratio in average risk between any two pairs of treatments (<code>"ratioRisk"</code>).</dd>
<dt>...</dt>
<dd>Not used. For compatibility with the generic method.</dd></dl>

Arguments

Brice Ozenne <a href="/link/broz%40sund.ku.dk?package=riskRegression&version=2025.09.17" data-mini-rdoc="riskRegression::broz@sund.ku.dk">broz@sund.ku.dk</a>

Author

Variance-Covariance Matrix for the Average Treatment Effect. — vcov.ate

<dl>

<dt>object</dt>
<dd>A <code>ate</code> object, i.e. output of the <code>ate</code> function.</dd>


<dt>contrasts</dt>
<dd>[character vector] levels of the treatment variable for which the variance-covariance matrix should be assessed. Default is to consider all levels.</dd>


<dt>times</dt>
<dd>[numeric vector] The timepoints at which the variance-covariance matrix should be displayed. Default is to consider all timepoints.</dd>


<dt>estimator</dt>
<dd>[character] The type of estimator relative to which the variance-covariance matrix should be displayed.</dd>


<dt>type</dt>
<dd>[character] should the variance-covariance matrix w.r.t. the average risk per treatment be displayed (<code>"meanRisk"</code>),
or the difference in average risk between any two pairs of treatments (<code>"diffRisk"</code>),
or the ratio in average risk between any two pairs of treatments (<code>"ratioRisk"</code>).</dd>


<dt>...</dt>
<dd>Not used. For compatibility with the generic method.</dd>

</dl>

Brice Ozenne <a href='mailto:broz@sund.ku.dk'>broz@sund.ku.dk</a>

vcov.ate: Variance-Covariance Matrix for the Average Treatment Effect.

Description

Usage

Value

Arguments

Author