HarmonicWtdMean: Block-Specific Mean Differences Weighted by Harmonic Mean...

Description Usage Arguments Author(s) References

Description

Calculates the weighted average of the block-specific differences of means, where the weights are proportional to the harmonic mean cluster size in the block (Donner and Klar, 1993; Bowers, Fredrickson and Hansen, 2010). The result is intended to be used as a test statistic in a permutation test.

Usage

1
HarmonicWtdMean(y, tr, tl, block, ...)

Arguments

y

Response variable (vector)

tr

Treatment variable (vector)

tl

The level of treatment variable (e.g., "treated" or 1) that indicates treated observations

block

Blocking/stratification variable (vector)

...

Additional arguments (included for compatibility but ignored)

Author(s)

Devin Caughey <devin.caughey@gmail.com>

References

Bowers, Jake, Mark Fredrickson and Ben Hansen. 2010. “RItools: Randomization Inference Tools.” R package version 0.1-11. http://www.jakebowers.org/RItools.html.

Donner, Allan and Neil Klar. 1993. “Confidence Interval Construction for Effect Measures Arising From Cluster Randomization Trials.” Journal of Clinical Epidemiology 46(2):123-131.


NPC documentation built on May 2, 2019, 5:07 a.m.