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Table 3 Gaps between actual and predicted returns under the linear function [The presented value = predicted returns—actual returns]

From: Predicting the returns of the US real estate investment trust market: evidence from the group method of data handling neural network

Day

Linear-30/30

Linear-100/30

Linear-200/30

Linear-300/30

Linear-600/30

1

− 2.27

− 0.98

− 1.26

− 1.15

− 1.79

2

− 1.26

− 0.87

− 0.61

− 1.52

− 1.36

3

− 1.35

− 0.19

− 0.01

− 0.80

− 0.60

4

− 2.39

− 0.11

− 0.15

− 1.01

− 0.64

5

− 2.72

0.04

− 0.14

− 0.88

− 0.53

6

− 3.18

− 1.22

− 0.94

− 1.75

− 1.48

7

− 2.29

− 0.21

− 0.02

− 0.47

− 0.20

8

− 3.23

− 0.97

− 0.78

− 1.39

− 0.92

9

− 1.97

− 0.79

− 0.11

− 0.38

− 0.39

10

− 2.54

− 0.49

− 0.36

− 0.96

− 0.67

11

− 1.44

0.52

0.42

0.02

0.35

12

− 0.38

− 0.23

− 0.40

− 0.91

− 0.45

13

− 2.24

− 2.04

− 1.85

− 2.48

− 1.94

14

− 1.64

− 1.28

− 1.23

− 1.59

− 0.98

15

− 1.04

− 0.04

− 0.26

− 0.36

0.32

16

− 0.69

0.34

− 0.11

− 0.26

0.54

17

− 1.98

− 1.08

− 1.48

− 1.74

− 0.83

18

− 1.80

− 1.23

− 1.37

− 1.46

− 0.54

19

− 2.15

− 1.23

− 1.40

− 1.49

− 0.46

20

− 1.72

− 0.29

− 0.43

− 0.47

0.70

21

− 2.31

− 0.69

− 1.00

− 1.19

0.05

22

− 0.85

0.76

0.53

0.29

1.60

23

0.41

0.79

0.44

0.01

1.27

24

1.14

− 0.05

− 0.15

− 0.90

0.38

25

3.29

1.12

1.26

1.22

1.72

26

0.33

− 1.58

− 1.65

− 2.71

− 1.56

27

0.43

− 0.05

0.34

− 0.52

0.33

28

− 1.39

− 0.18

− 0.17

− 0.96

− 0.08

29

− 1.72

0.40

0.42

− 0.47

0.51

30

− 2.94

− 0.68

− 0.80

− 1.82

− 0.83

31

− 0.86

0.32

0.23

− 0.83

0.20

32

− 0.98

1.13

0.65

− 0.46

0.51

MSE

3.69

0.72

0.70

1.45

0.87