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Table 2 Coefficients of the regression model and errors fitted to an ARMA structure

From: Syndromic surveillance for West Nile virus using raptors in rehabilitation

Coefficients of the model before 2002 Period January 1990–December 2001 Coefficients of the model after 2002 Period January 2002–December 2014
Value Std Error t-value p-value Value Std Error t-value p-value
Intercept 4.04 0.83 4.87 0.00 Intercept 21.50 3.80 5.66 0.00
δ 0.08 0.01 7.66 0.00 δ −0.004 0.02 −0.22 0.83
β 12 −5.79 0.57 −10.10 0.00 β 12 −16.60 1.05 −15.85 0.00
α 12 −3.20 0.57 −5.60 0.00 α 12 −12.96 1.04 −12.42 0.00
β 6 −0.36 0.54 −0.68 0.50 β 6 8.55 0.98 8.69 0.00
α 6 −2.89 0.54 −5.36 0.00 α 6 −4.96 0.98 −5.05 0.00
α 4 1.08 0.49 2.21 0.03 α 4 6.90 0.89 7.72 0.03
α 3 −1.58 0.44 −3.62 0.00 α 3 −4.53 0.80 −5.69 0.00
ϵt     Zt + 0.221Zt − 1
AIC: 1913.46 BIC: 1983.83 logLik −937.73
Standardized residuals: Min: −3.47 Q1: −0.61 Med: −0.12 Q3: 0.47 Max: 4.60