Dataset:  coffee_triangle.dat

Source: R.A. Alvarado and A.R. Linnemann (2010). "The Predictive Value
of a Small Consumer Panel for Coffee-Cupper Judgment," British Food
Journal, Vol. 112, #9, pp. 1023-1032.

Description: Results of Triangle test for 12 raters tasting 10 pairs of
coffee varieties. Triangle test involves having each rater drink
3 cups, 1 of 1 variety, 2 of the other. Each rater had 12 triangles
for each pair of varieties, 2 each for the following sequences:
AAB,ABA,BAA,ABB,BAB,BBA. Response is the number of correct identifying
of the variety appearing once. Experiment conducted in 2 groups of 6
raters each.

Variables/Columns
Group         8
Rater        15-16 
Coffee Pair   23-24
Variety A     32
Variety B     40
Correct Cases   47-48
Number of trials  55-56