Table 1: Real-valued features computed for each cell nucleus.

NumberTen real-valued features

1Radius (mean of distances from center to points on the perimeter)
2texture (standard deviation of grey-scale values)
3Perimeter
4Area
5Smoothness (local variation in radius lengths)
6Compactness (/area − 1.0)
7Concavity (severity of concave portions of the contour)
8Concave points (number of concave portions of the contour)
9Symmetry
10Fractal dimension (“coastline approximation” − 1)