SSDforR (version 1.1)

GABrf2: Autocorrelation for group data

Description

This function tests for lag-1 autocorrelation for group data. This should be used any time the sample size is less than six. Any phase can be tested. Also produces regression line graph.

Usage

GABrf2(behavior, phaseX, timeX, v1)

Arguments

behavior

behavior variable

phaseX

phase variable

timeX

time variable (e.g., week)

v1

letter of phase being tested in quotation marks (e.g., "A")

References

{Huitema, B.F. & McKean, J.W. (1994). Two reduced-biased autocorrelation estimators: rF1 and rF2. Perceptual and Motor Skills, 78(1), 323-330.

} {Go to www.ssdanalysis.com for more information. }

Examples

attend<-c(0,0,0,1,0,0,1,0,0,1,0,0,1,0,1,0,0,0,0,0,1,1,0,0,1,NA,
0,1,1,0,1,1,0,1,1,1,0,1,0,0,1,1,1,1,0,0,1,1,0,1,0,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1)

week<-c(1,1,1,1,1,2,2,2,2,2,3,3,3,3,3,4,4,4,4,4,5,5,5,5,5,NA,6,6,6,6,6,7,7,7,7,7,
8,8,8,8,8,9,9,9,9,9,10,10,10,10,10,11,11,11,11,11,12,12,12,12,12,13,
13,13,13,13,14,14,14,14,14,15,15,15,15,15)

pattend<-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",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","B","B","B","B","B","B","B","B")
GABrf2(attend,pattend,week,"A")