data(learning.test)
str(learning.test)
# 'data.frame': 5000 obs. of 6 variables:
# $ A: Factor w/ 3 levels "a","b","c": 2 2 1 1 1 3 3 2 2 2 ...
# $ B: Factor w/ 3 levels "a","b","c": 3 1 1 1 1 3 3 2 2 1 ...
# $ C: Factor w/ 3 levels "a","b","c": 2 3 1 1 2 1 2 1 2 2 ...
# $ D: Factor w/ 3 levels "a","b","c": 1 1 1 1 3 3 3 2 1 1 ...
# $ E: Factor w/ 3 levels "a","b","c": 2 2 1 2 1 3 3 2 3 1 ...
# $ F: Factor w/ 2 levels "a","b": 2 2 1 2 1 1 1 2 1 1 ...
gs(learning.test)
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