Table 6.

Parameter settings of the optimized kNN for each dataset.

Dataset	Number of Neighbors	Distance Metric	Distance Weight	Standardize Data
All	16	Spearman	Inverse	TRUE
Caucasian	6	Correlation	Squared Inverse	TRUE
Hispanic	32	Cityblock	Squared Inverse	TRUE
Females	4	Hamming	Squared Inverse	FALSE
Males	22	Cityblock	Equal	FALSE
Age ≤ 50	14	Cosine	Squared Inverse	TRUE
Age > 50	31	16	Squared Inverse	TRUE