samonDifferenceSummaryIM: Summary function for the difference in treatment

In samon: Sensitivity Analysis for Missing Data

Summary function for the difference in treatment

Description

Produces a summary of the difference in treatment effect using two samonIM objects. It combines bootstrap imputed results to produce confidence intervals

Usage

samonDifferenceSummaryIM( trt1, trt2, CIlevel = 0.95 )

Arguments

trt1	the result from a call to samonSummaryIM
trt2	the result from a call to samonSummaryIM
CIlevel	the confidence level for confidence intervals

Details

Combines estimates (imputed) bootstrap estimates to produce summary estimates and confidence intervals for an estimate of the difference in treatment effect from two samon objects.

The difference in treatment estimates is taken to be those of treatment 2 minus those of treatment 1 at the same value of sensitivity parameter alpha.

Value

Returns a list. Items include: TM which contains treatment estimates and the difference, together with standard error estimates based on multiple imputation of bootstrap samples. It also contains CI which contains confidence intervals. Other items are returned for convenience are n10, the number of subjects in the first treatment group, and n20 the number of subjects in the second treatment group.

Examples

# V1Results and V2Results are the returned objects from the
# samonIM function associated with VAS treatment 1 and 2 respectively.
data("V1Results")
data("V2Results")

# summarize each arm, their difference and their cross difference.
VSummary1 <- samonSummaryIM(V1Results)
VSummary2 <- samonSummaryIM(V2Results)
VSummaryD <- samonDifferenceSummaryIM(VSummary1,VSummary2)
VSummaryX <- samonCrossSummaryIM(VSummary1,VSummary2)

samon documentation built on Oct. 26, 2023, 9:06 a.m.