Table 2.

Attribute description of the Breast Cancer dataset.

#	Attribute Name	Type	Possible Values
1	age	categorical	10–19, 20–29, 30–39, 40–49, 50–59, 60–69, 70–79, 80–89, 90–99.
2	menopause	categorical	lt40, ge40, premeno
3	tumour-size	categorical	0–4, 5–9, 10–14, 15–19, 20–24, 25–29, 30–34, 35–39, 40–44, 45–49, 50–54, 55–59
4	inv-nodes	categorical	0–2, 3–5, 6–8, 9–11, 12–14, 15–17, 18–20, 21–23, 24–26, 27–29, 30–32, 33–35, 36–39
5	node-caps	categorical	yes, no
6	deg-malign	categorical	1, 2, 3
7	breast	categorical	left, right
8	breast-quad	categorical	left-up, left-low, right-up, right-low, central
9	irradiat	categorical	yes, no
10	class	categorical	no-recurrence-events, recurrence-events