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Table 3 The autocorrelation function value and the partial autocorrelation function value of the sequence

From: Quasi-maximum exponential likelihood estimator and portmanteau test of double \(\operatorname{AR}(p)\) model based on \(\operatorname{Laplace}(a,b)\)

Lag

ACF

PACF

Q-Statistic

P

1

−0.463

−0.463

67.786

0.0000

2

−0.068

−0.359

69.232

0.0000

3

0.172

−0.054

78.664

0.0000

4

−0.18

−0.175

88.993

0.0000

5

−0.036

−0.253

89.407

0.0000

6

0.11

−0.158

93.264

0.0000

7

−0.087

−0.183

95.725

0.0000

8

0.039

−0.146

96.224

0.0000

9

0.032

−0.138

96.555

0.0000

10

0.028

−0.024

96.803

0.0000

11

0.036

0.092

97.237

0.0000

12

−0.163

−0.126

105.99

0.0000

13

0.104

−0.057

109.51

0.0000

14

−0.004

−0.014

109.52

0.0000