Sample Size Calculations for Longitudinal Data
Chronic progressive repeated measures (CPRM) model sample size calcula...
Sample size calculations for difference in slopes between two groups.
Linear mixed model sample size calculations.
Random coefficient regression models (RCRM) sample size calculations
Linear mixed model sample size calculations from Liu & Liang (1997).
Sample size calculations for linear mixed models of rate of change bas...
longpower: Sample Size Calculations for Longitudinal Data
Constructor function for class "power.longtest"
Linear mixed model sample size calculations.
Linear mixed model sample size calculations.
Print method for longitudinal data power calculation object
Compute power and sample size for linear models of longitudinal data. Supported models include mixed-effects models and models fit by generalized least squares and generalized estimating equations. The package is described in Iddi and Donohue (2022) <DOI:10.32614/RJ-2022-022>. Relevant formulas are derived by Liu and Liang (1997) <DOI:10.2307/2533554>, Diggle et al (2002) <ISBN:9780199676750>, and Lu, Luo, and Chen (2008) <DOI:10.2202/1557-4679.1098>.