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Table 3

Best performing method in missing precipitation data imputation for each rain gauge and missing pattern according to performance and error measures

GaugeH-MV1H-MV2H-MV3H-MV4H-MV5L-MV6L-MV7L-MV8L-MV9L-MV10
Pattern 
First half RF/STK STK RF STK RF STK PMM STK PMM RF 
Last half RF/STK STK RF RF RF/STK STK STK STK PMM PMM 
Random STK RF RF RF RF RF/STK PMM RF RF RF 
GaugeH-MV1H-MV2H-MV3H-MV4H-MV5L-MV6L-MV7L-MV8L-MV9L-MV10
Pattern 
First half RF/STK STK RF STK RF STK PMM STK PMM RF 
Last half RF/STK STK RF RF RF/STK STK STK STK PMM PMM 
Random STK RF RF RF RF RF/STK PMM RF RF RF 

Acronyms to the right of the slash symbol represent final selected methods after consistency analysis (section below).

H-MV, high percentage of missing values; L-MV, low percentage of missing values; PMM, multiple imputation with predictive mean matching; RF, random forest; STK, spatio-temporal kriging.

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