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. 2022 Mar 22;12:4832. doi: 10.1038/s41598-022-08974-8

Table 3.

Ranking of the important features for the dichotomized level of kidney function at the biopsy.

Features Description Gini index
(importance)
Rank Overall rank
Frequency (visual dictionary) f1 (red) 0.64 9 16
f2 (blue) 3.68 1 2
f3 (green) 0.85 6 11
f4 (black) 0.87 5 10
f5 (cyan) 2.10 3 4
f6 (orange) 0.69 8 15
f7 (yellow) 1.26 4 7
f8 (dark blue) 2.12 2 3
f9 (white) 0.73 7 13
Polynomial coefficient c1 1.69 1 6
c2 1.17 2 8
c3 1.09 3 9
c4 0.70 5 14
c5 0.85 4 12
Clinical Age 4.68 1 1
Gender 0.60 3 17
Race 0.37 4 18
Diagnosis 1.98 2 5

cn: polynomial coefficients in Eq. (1).