bcw_original: Breast Cancer Wisconsin (Original) Data Set

In coatless/ucidata: Collection of Datasets from the UC Irvine Machine Learning Repository

Breast Cancer Wisconsin (Original) Data Set

Description

Samples arrive periodically as Dr. Wolberg reports his clinical cases. The database therefore reflects this chronological grouping of the data.

Usage

bcw_original

Format

A data frame with 699 observations on the following 11 variables.

• sample_code_number: id number

• clump_thickness: 1 - 10

• uniformity_of_cell_size: 1 - 10

• uniformity_of_cell_shape: 1 - 10

• single_epithelial_cell_size: 1 - 10

• bare_nuclei: 1 - 10

• bland_chromatin: 1 - 10

• normal_nucleoli: 1 - 10

• mitoses: 1 - 10

• class: 2 for benign, 4 for malignant

Details

This grouping information appears immediately below, having been removed from the data itself:

Group	Instances	Date of Collection
1	367	January 1989
2	70	October 1989
3	31	February 1990
4	17	April 1990
5	48	August 1990
6	49	Updated January 1991
7	31	June 1991
8	86	November 1991
Total	699 points	15 July 1992

Note that the results summarized above in Past Usage refer to a dataset of size 369, while Group 1 has only 367 instances. This is because it originally contained 369 instances; 2 were removed.

Source

Dr. William H. Wolberg - Physician University of Wisconsin Hospitals Madison, Wisconsin, USA

References

https://archive.ics.uci.edu/ml/machine-learning-databases/breast-cancer-wisconsin/breast-cancer-wisconsin.data

coatless/ucidata documentation built on July 29, 2024, 8:12 a.m.