An EBImage object depicting a bar plot image from Figure 4 of Kortum, P., and
Acymyan, C.Z. 2013. How low can you go? Is the System Usability Scale
range restricted? Journal of Usability Studies 9:14-24.
Usage
data(Kortum_and_Acymyan_2013_Fig4)
Format
A EBImage object containing a bar plot raster image