SSDforR (version 1.5.39)

diffchart: Difference transformation

Description

Produces first difference transformation on any phase.

Usage

diffchart(behavior, phaseX, v1)

Arguments

behavior

behavior variable

phaseX

phase variable

v1

letter for phase to be transformed between quotation marks (e.g., "A")

Author

Charles Auerbach, PhD Wurzweiler School of Social Work Wendy Zeitlin, PhD Montclair State University

References

Auerbach, Charles, and Zeitlin Wendy. SSD for R: An R Package for Analyzing Single-Subject Data. Oxford University Press, 2014. p39, p40, p65-66, p90, p142

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")
diffchart(cry,pcry,"A")