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Table 7 Gaps between actual and long-term predicted returns [Under linear and linear covariance and quadratic functions]

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

Day

Linear

[300/60]

Linear covariance

[300/60]

Quadratic

[300/60]

Day

Linear

[300/60]

Linear covariance

[300/60]

Quadratic

[300/60]

1

− 0.23

0.42

0.65

32

− 1.96

− 1.36

− 1.73

2

− 2.06

− 1.57

− 1.41

33

− 1.20

− 0.54

− 0.67

3

− 0.84

0.04

0.34

34

− 1.21

− 0.59

− 0.68

4

− 1.45

− 0.76

− 0.76

35

− 1.00

− 0.55

− 0.47

5

− 1.06

− 0.35

− 0.28

36

− 1.74

− 1.31

− 1.28

6

− 0.64

0.04

0.35

37

− 0.71

− 0.23

0.07

7

− 0.52

− 0.03

− 0.01

38

− 1.46

− 0.90

− 0.75

8

− 0.99

− 0.44

− 0.43

39

− 0.82

− 0.29

0.06

9

− 1.77

− 1.09

− 0.91

40

− 0.97

− 0.59

− 0.37

10

0.08

0.57

0.99

41

− 0.07

0.30

0.57

11

− 1.40

− 1.32

− 1.48

42

− 0.84

− 0.50

− 0.44

12

− 0.42

0.07

0.49

43

− 2.69

− 2.04

− 1.77

13

− 0.70

− 0.52

− 0.04

44

− 2.02

− 1.38

− 0.77

14

− 1.52

− 1.14

− 0.55

45

− 0.72

− 0.34

0.53

15

− 1.23

− 0.88

0.11

46

− 0.46

− 0.13

0.52

16

− 0.06

0.24

1.83

47

− 2.02

− 1.53

− 0.63

17

− 0.72

− 0.46

− 1.40

48

− 2.02

− 1.45

91.50

18

− 0.57

− 0.08

− 0.50

49

− 2.10

− 1.48

− 1.15E+09

19

− 0.92

− 0.43

0.10

50

− 1.20

− 0.55

− 1.66E+29

20

− 0.57

− 0.01

0.74

51

− 1.78

− 1.03

− 4.86E+13

21

− 1.69

− 1.15

− 2.64

52

− 0.50

0.54

− 8.40E+88

22

− 1.48

− 0.82

1.06

53

− 0.44

0.43

272.20

23

− 0.44

0.34

8.56

54

− 1.43

− 0.37

− 3.89E+51

24

− 0.24

0.20

− 0.14

55

− 0.02

0.97

− 3.79E+71

25

1.11

1.35

− 8.96

56

− 3.08

− 1.95

− 3.82E+46

26

− 1.36

− 0.81

− 9.03

57

− 1.61

0.05

− 536.51

27

− 2.52

− 1.52

− 6.65

58

− 1.51

− 0.20

− 6.71E+10

28

− 0.70

0.26

− 2.41

59

− 1.07

0.36

− 328.70

29

0.01

0.62

− 2.01

60

− 2.32

− 0.97

61.35

30

1.70

2.20

− 0.82

61

− 1.53

− 0.03

− 42.26

31

− 1.52

− 1.38

− 3.03

62

− 0.76

0.44

− 163.85

MSE

Linear-300/60

1.83

Linear-cov-300/60

0.82

Quadratic-300/60

1.138E+176