simdata

A dataset contains 50 clusters, in which 25 clusters are in group 1 and the other 25 clusters are in group 0
Each cluster has 9 observations, each observation has an ordinal outcome Y with three levels (i.e., 0, 1, 2).
The outcomes within each cluster are correlated.

datasets

A modified version of alternating logistic regressions (ALR) with estimation based on orthogonalized residuals (ORTH) is implemented, which use paired estimating equations to jointly estimate parameters in marginal mean and within-association models. The within-cluster association between ordinal responses is modeled by global pairwise odds ratios (POR). A finite-sample bias correction is provided to POR parameter estimates based on matrix multiplicative adjusted orthogonalized residuals (MMORTH) for correcting estimating equations, and different bias-corrected variance estimators such as BC1, BC2, and BC3.

Can Meng

ORTH.Ord

Alternating Logistic Regression with Orthogonalized Residuals
for Correlated Ordinal Outcomes

Fan Li

simdata function

a data frame with 450 rows and 5 variables:<dl>
<dt>Obs</dt>
<dd>number of observations per cluster</dd><dt>Y</dt>
<dd>ordinal outcome with three levels, possible values are 0, 1, and 2</dd><dt>Cluster</dt>
<dd>number of clusters</dd><dt>X1</dt>
<dd>a cluster-level binary covariate: X1=1 if in group 1 and X1=0 otherwise</dd><dt>X2</dt>
<dd>an observation-level continuous covariate: generatd from normal distribution with mean=1 and SD=1</dd>
</dl>

Format

A simulated data with correlated ordinal outcome for cluster randomized trial — simdata

a data frame with 450 rows and 5 variables:<dl>
<dt>Obs</dt>
<dd>number of observations per cluster</dd>

<dt>Y</dt>
<dd>ordinal outcome with three levels, possible values are 0, 1, and 2</dd>

<dt>Cluster</dt>
<dd>number of clusters</dd>

<dt>X1</dt>
<dd>a cluster-level binary covariate: X1=1 if in group 1 and X1=0 otherwise</dd>

<dt>X2</dt>
<dd>an observation-level continuous covariate: generatd from normal distribution with mean=1 and SD=1</dd>


</dl>

simdata: A simulated data with correlated ordinal outcome for cluster randomized trial

Description

Usage

Arguments

Format