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Table 3 Forecast error measures (MAPE)

From: Blood donation projections using hierarchical time series forecasting: the case of Zimbabwe’s national blood bank

 

ETS Forecasting method

ARIMA Forecasting method

 

BU

TDFP

TDHA

TDHP

OC

BU

TDFP

TDHA

TDHP

OC

Total

12.58

12.43

12.43

12.43

12.57

11.27

11.42

11.42

11.42

11.42

M (Male)

12.68

11.32

11.4

12.52

12.66

12.18

12.45

10.68

10.62

10.62

F (Female)

12.45

14.03

13.9

12.32

12.45

11.97

10.11

12.37

12.44

12.44

A M

12.81

11.32

11.39

12.65

12.8

12.17

12.44

10.67

10.61

10.61

B M

12.76

11.32

11.39

12.6

12.75

12.21

12.48

10.69

10.63

10.63

AB M

12.62

11.33

11.41

12.46

12.62

12.15

12.43

10.69

10.63

10.63

O M

12.59

11.32

11.39

12.43

12.57

12.17

12.45

10.68

10.62

10.62

A F

12.44

14.04

13.91

12.31

12.44

11.95

10.1

12.37

12.44

12.44

B F

12.42

14.02

13.89

12.29

12.42

11.96

10.1

12.36

12.43

12.43

AB F

12.56

13.99

13.86

12.43

12.56

12.04

10.24

12.42

12.49

12.49

O F

12.46

14.03

13.9

12.33

12.46

11.98

10.12

12.37

12.44

12.44

Average

12.58

12.65

12.62

12.43

12.57

12

11.3

11.52

11.52

11.52

  1. BU Bottom-up approach, TDHP Top-down approach with average historical proportions
  2. TDHA Top-down approach with proportion of historical averages
  3. TDFP Top-down approach with forecast proportions and OC-optimal combination approach