| 1 | ID number |
| 2 | Diagnosis (M = Malignant, N = Normal) |
| 3 to 32 | Ten real-valued features are computed for each cell nucleus |
| i | Radius (mean of distances from center to points on the perimeter) |
| ii | Texture (Standard deviation of gray-scale values) |
| iii | Perimeter |
| iv | Area |
| v | Smoothness (Local variation in radius lengths) |
| vi | Compactness (Perimeter2 / area - 1.0) |
| vii | Concavity (Severity of concave portions of the contour) |
| viii | Concave points (Number of concave portions of the contour) |
| ix | Symmetry |
| x | Fractal dimension (“Coastline approximation” - 1) |