Description Usage Arguments Details Value References Examples
View source: R/nonoverlapmeasures.R
Calculates the percentage of all nonoverlapping data index (Parker, HaganBurke, & Vannest, 2007; Parker, Vannest, & Davis, 2011).
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A_data 
vector of numeric data for A phase. Missing values are dropped. 
B_data 
vector of numeric data for B phase. Missing values are dropped. 
condition 
vector identifying the treatment condition for each observation in the series. 
outcome 
vector of outcome data for the entire series. 
baseline_phase 
character string specifying which value of

improvement 
character string indicating direction of improvement. Default is "increase". 
For an outcome where increase is desirable, PAND is calculated as the proportion of observations remaining after removing the fewest possible number of observations from either phase so that the highest remaining point from the baseline phase is less than the lowest remaining point from the treatment phase. For an outcome where decrease is desirable, PAND is calculated as the proportion of observations remaining after removing the fewest possible number of observations from either phase so that the lowest remaining point from the baseline phase is greater than the highest remaining point from the treatment phase. The range of PAND depends on the number of observations in each phase.
Numeric value
Parker, R. I., HaganBurke, S., & Vannest, K. J. (2007). Percentage of all nonoverlapping data (PAND): An alternative to PND. The Journal of Special Education, 40(4), 194–204. doi:doi: 10.1177/00224669070400040101
Parker, R. I., Vannest, K. J., & Davis, J. L. (2011). Effect size in singlecase research: A review of nine nonoverlap techniques. Behavior Modification, 35(4), 303–22. doi:doi: 10.1177/0145445511399147
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