mp_corr_func: Functions for Generating Correlations

In mlmpower: Power Analysis and Data Simulation for Multilevel Models

Functions for Generating Correlations

Description

Specify a random correlation that is uniform between lower and upper

Usage

random(lower, upper)

fixed(value)

Arguments

lower	the lower bound of the distribution.
upper	the upper bound of the distribution.
value	the fixed value for the correlation.

Value

A mp_corr_func that generates the desired correlation

See Also

correlations()

Examples

# Create Model with random and fixed correlations
(
    outcome('Y')
    + within_predictor('X')
    + between_predictor('Z')
    + effect_size(icc = 0.1)
    # Defaults
    + correlations(
        within  = random(0.1, 0.3),
        between = fixed(0.2)
    )
)

mlmpower documentation built on June 8, 2025, 11:07 a.m.