submax-package: Effect Modification in Observational Studies Using the Submax...

Description Details Author(s) References Examples

Description

Effect modification occurs if a treatment effect is larger or more stable in certain subgroups defined by observed covariates. The submax or subgroup-maximum method of Lee et al. (2017) <arXiv:1702.00525> does an overall test and separate tests in subgroups, correcting for multiple testing using the joint distribution.

Details

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The main function is submax(). Also helpful is score(). See their documentation.

Author(s)

Paul R. Rosenbaum

Maintainer: Paul R. Rosenbaum <[email protected]>

References

Lee, K., Small, D. S., & Rosenbaum, P. R. (2017). A new, powerful approach to the study of effect modification in observational studies. arXiv preprint arXiv:1702.00525.

Examples

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#Reproduces parts of Table 2 of Lee et al. (2017)
data(Active)
submax(Active$delta,Active[,1:7],gamma=1.70,alternative="less")

submax documentation built on Dec. 14, 2017, 5:21 p.m.