IntColumn ageColumn = IntColumn.ofAll(AGE, 42, 99, 67); DoubleColumn heightColumn = DoubleColumn.ofAll(HEIGHT, 1.74, 1.20, 1.70); BooleanColumn vegetarianColumn = BooleanColumn.ofAll(VEGETARIAN, true, false, false); TimestampColumn dateOfBirthColumn = TimestampColumn.ofAll(DATE_OF_BIRTH, AUG_26_1975, JAN_08_2006, OCT_26_1947); CategoryColumn genderColumn = CategoryColumn.ofAll(GENDER, "Female", "Male", "Female");