robumeta (version 2.1)

group.mean: Convenience function for calculating group-mean covariates.

Description

Creates a between-study (or between-cluster) version of the covariate in question.

Usage

group.mean(var, grp)

Value

A column or vector containing the group.mean covariate.

Arguments

var

The covariate cotaining the values to be group averaged.

grp

The group from which the average should be calculated.

Examples

# Load data
data(corrdat)

# Create a group mean covariate 
age_m <- group.mean(corrdat$age, corrdat$studynum)