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MultiRR (version 1.1)

Bias, Precision, and Power for Multi-Level Random Regressions

Description

Calculates bias, precision, and power for multi-level random regressions. Random regressions are types of hierarchical models in which data are structured in groups and (regression) coefficients can vary by groups. Tools to estimate model performance are designed mostly for scenarios where (regression) coefficients vary at just one level. 'MultiRR' provides simulation and analytical tools (based on 'lme4') to study model performance for random regressions that vary at more than one level (multi-level random regressions), allowing researchers to determine optimal sampling designs.

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Version

Install

install.packages('MultiRR')

Monthly Downloads

38

Version

1.1

License

GPL-2

Maintainer

Yimen G ArayaAjoy

Last Published

October 21st, 2015

Functions in MultiRR (1.1)

Power

Estimates power to detect significant among-individual variation in intercepts and slopes.
lower2

lower2 is not a user level function
median2

median2 is not a user level function
mean2

mean2 is not a user level function
MultiRR-package

Simulation Package for Multi-level random regressions
lmerAll

lmerAll is not a user level function
Imprecision

Calculates imprecision for n multi-level random regressions perfromed to n simulated dats sets.
Bias

Estimates bias for n number of multi-level random regression models performed to n simulated data sets.
Plot.Sim

Density plots for each variance component.
Anal.MultiRR

Fits a multilevel random regression to n simulated data frames.
Summary

Summary of the results of the multi-level random regressions performed to n simulated data sets.
sd2

sd2 is not a user level function
Sim.MultiRR

Simulate data setes to be analyzed by a multi-level random regression.
upper2

Upper2 is not a user level function