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Table 1 Variables of the breast-tissue dataset and their respective description

From: DI2: prior-free and multi-item discretization of biological data and its applications

Variables Type Description
I0 Continuous Impedivity (ohm) at zero frequency
PA500 Continuous Phase angle at 500 KHz
HFS Continuous High-frequency slope of phase angle
DA Continuous Impedance distance between spectral ends
Area Continuous Area under spectrum
A/DA Continuous Area normalized by DA
Max IP Continuous IP maximum of the spectrum
DR Continuous Distance between I0 and real part of the maximum frequency point
P Continuous Length of the spectral curve
Class Categorical Carcinoma, fibro-adenoma, mastopathy, glandular, connective, adipose