SSDforR (version 1.0)

Gindex: g-index

Description

The index is calculated using the proportion of scores in the desired zone (in this example below the regression line) for the baseline and intervention. Then the baseline average is subtracted from the intervention average.

Usage

Gindex(behavior, phaseX, v1, v2)

Arguments

behavior

behavior variable

phaseX

phase variable

v1

Phase letter for baseline i.e. "A"

v2

Phase letter for second phase i.e. "B"

References

Go to www.ssdanalysis.com for more information

Examples

cry<-c(3, 4, 2, 5, 3, 4, NA, 2, 2, 3, 2, 1, 2, NA, 2, 2, 1, 2, 1, 0, 0, 0)
pcry<-c("A", "A", "A", "A", "A", "A", NA, "B", "B", "B", "B", "B", "B", NA, "B1", "B1", "B1", "B1", "B1", "B1", "B1", "B1")
Gindex(cry,pcry,"A","B")