XRchart: SPC XR-Chart

In SSDforR: Functions to Analyze Single System Data

SPC XR-Chart

Description

This chart can be used when there are multiple observations per sample and uses the mean of each sample to create the chart.

Usage

XRchart(behavior, groupX, bandX, ABxlab, ABylab, ABmain)

Arguments

behavior	behavior variable
groupX	grouping variable
bandX	number of standard deviations desired (e.g., 2)
ABxlab	x-axis label in quotation marks (e.g., "week")
ABylab	y-axis label in quotation marks (e.g., "mean amount")
ABmain	main title for chart in quotation marks (e.g., "Admits to Hospital")

Author(s)

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. p71, p105

Orme, J. & Cox, M.E. (2001). Analyzing single-subject design data using statistical proces control charts. Social Work Research, 25(2), 115-127.

Go to www.ssdanalysis.com for more information.

Examples

admit<-c(85,90,80,84,82,79,75,76,80,84,75,80,79,83,88,78,80,85,83,
82,89,84,89,91,87,84,77,86,80,
89,81,86,88,83,86,90,86,85,85,87,80,89,NA,86,87,88,89,79,73,75,
74,70,75,81,85,75,73,75,
79,70,72,71,69,70,64,60,59,54,53,55,50,54,51,49,48,50,46,55,51,
55,49,50,48,51,33)

day<-c(1,1,1,1,1,1,1,2,2,2,2,2,2,2,3,3,3,3,3,3,3,4,4,4,4,4,4,4,5,
5,5,5,5,5,5,6,6,6,6,6,6,6,NA,7,7,7,7,7,7,7,8,8,8,8,8,8,8,9,
9,9,9,9,9,9,10,10,10,10,10,10,10,11,11,11,11,11,11,11,12,
12,12,12,12,12,12)

padmit<-c("A","A","A","A","A","A","A","A","A","A",
"A","A","A","A","A","A",
"A","A","A","A","A","A","A","A","A","A","A","A","A","A","A","A",
"A","A","A","A","A","A","A","A","A","A",NA,"B","B",
"B","B","B","B","B","B",
"B","B","B","B","B","B","B","B","B","B","B","B",
"B","B","B","B",
"B","B","B","B","B","B","B","B","B","B","B","B",
"B","B","B","B","B","B")
XRchart(admit, day, 2, "week", "amount", "Admits to Hospital")

SSDforR documentation built on Nov. 24, 2023, 5:08 p.m.