Breast Cancer

About

This breast cancer domain was obtained from the University Medical Centre, Institute of Oncology, Ljubljana, Yugoslavia. This is one of three domains provided by the Oncology Institute that has repeatedly appeared in the machine learning literature. (See also lymphography and primary-tumor.) This data set includes 201 instances of one class and 85 instances of another class. The instances are described by 9 attributes, some of which are linear and some are nominal. Variables Info: 1. Class: no-recurrence-events, recurrence-events 2. age: 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80-89, 90-99. 3. menopause: lt40, ge40, premeno. 4. tumor-size: 0-4, 5-9, 10-14, 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59. 5. inv-nodes: 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. 6. node-caps: yes, no. 7. deg-malig: 1, 2, 3. 8. breast: left, right. 9. breast-quad: left-up, left-low, right-up, right-low, central. 10. irradiat: yes, no. Class labels: no-recurrence-events, recurrence-events

Subject Area

Health and Medicine

Instances

286

Features

Data Types

Multivariate

Tasks

Classification

Feature Types

Categorical

Features

Name	Role	Type	Units	Missing Values
Class	Target	Binary	-	No
└ no-recurrence-events, recurrence-events
age	Feature	Categorical	years	No
└ 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80-89, 90-99
menopause	Feature	Categorical	-	No
└ lt40, ge40, premeno
tumor-size	Feature	Categorical	-	No
└ 0-4, 5-9, 10-14, 15-19, 20-24, 25-29, 30-34, 35-39, 40-44, 45-49, 50-54, 55-59
inv-nodes	Feature	Categorical	-	No
└ 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
node-caps	Feature	Binary	-	Yes
└ yes, no
deg-malig	Feature	Integer	-	No
└ 1, 2, 3
breast	Feature	Binary	-	No
└ left, right
breast-quad	Feature	Categorical	-	Yes
└ left-up, left-low, right-up, right-low, central
irradiat	Feature	Binary	-	No
└ yes, no