Research Article

Preprocessing Approach for Power Transformer Maintenance Data Mining Based on k-Nearest Neighbor Completion and Principal Component Analysis

Table 2

Simulated missing values of transformer T0001.

DatesH2CH4C2H4COCO2N2

06/09/198830,00
17/10/19891210,00
30/07/199080,0
16/04/199165300,00
10/05/199564920,00
31/05/19995870,00
10/05/200089,023,00