Chi-square test comparing the frequency of observations below the robust regression line in a comparison phase to another phase.
robregbelow(behavior, phaseX, v1, v2)
behavior variable
phase variable
letter of comparison phase in quotation marks (e.g., "A")
letter of second phase in quotation marks (e.g., "B")
Charles Auerbach, PhD Wurzweiler School of Social Work Wendy Zeitlin, PhD Montclair State University
Auerbach, Charles, and Zeitlin Wendy. SSD for R: An R Package for Analyzing Single-Subject Data. Oxford University Press, 2014. p85, p146
Go to www.ssdanalysis.com for more information.
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")
robregbelow(cry,pcry,"A","B1")
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