In an experiment to investigate the effect of cutting length (two levels) and planting time (two levels) on the survival of plum root cuttings, 240 cuttings were planted for each of the 2 x 2 combinations of these factors, and their survival was later recorded.
Bartlett
A 3-dimensional array resulting from cross-tabulating 3 variables for 960 observations. The variable names and their levels are:
No | Name | Levels |
1 | Alive |
"Alive", "Dead" |
2 | Time |
"Now", "Spring" |
3 | Length |
"Long", "Short" |
Bartlett, M. S. (1935). Contingency Table Interactions Journal of the Royal Statistical Society, Supplement, 1935, 2, 248-252.
Bartlett2
for the same data in data frame format