Description Usage Format Details References Examples

"env.three" is an R environment containing a data `list`

generated from 50 subjects and 4 sessions, and the parameter settings used to generate the data.

1 | ```
data("env.three")
``` |

An R environment.

`data3`

a list of length 50, each contains a list of length 4 of a data frame with 3 variables.

`Theta`

a 2 by 2 matrix, which is the value of the fixed effects.

`Sigma`

the covariance matrix of the model error terms for the single level model.

`n`

a 50 by 4 matrix, is the number of trials for each subject each session.

`Psi`

the covariance matrix of the random effects in the mixed effects model.

`Lambda`

the covariance matrix of the model errors in the mixed effects model.

`A`

a 50 by 4 matrix, is the

`A`

value in the single-level for each subject each session.`B`

a 50 by 4 matrix, is the

`B`

value in the single-level for each subject each session.`C`

a 50 by 4 matrix, is the

`C`

value in the single-level for each subject each session.

The number of subjects is *N = 50* and the number of sessions is *K = 4*. Under each session of each subject, the number of trials is a random draw from a Poisson distribution with mean 100. The fixed effects are set to be *A = 0.5*, *C = 0.5*, and *B = -1*, and the variances of the model errors are *σ_{1_{ik}}^2 = 1*, *σ_{2_{ik}}^2 = 4* and the correlation is *δ = 0.5*. See Section 5.2 of the reference for details.

Zhao, Y., & Luo, X. (2014). *Estimating Mediation Effects under Correlated Errors with an Application to fMRI.* arXiv preprint arXiv:1410.7217.

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