A New Approach to Investigation of the Relationship of VLF Signals by Using Longitudinal Analysis Models

Table 5

The residuals and coefficients for marginal model.

(a)

Min.	1𝑄	Median	3𝑄	Max.
−15.03	−4.24	3.32	4.85	12.96

(b)

Coefficients	Estimate	Naive S.E.	Naive Z.	Robust S.E.	Robust Z.
Intercept	48.55	0.96	50.35	0.08	545.74
Time	1.74	0.38	4.52	0.03	47.13
Signal	−32.43	1.36	—	0.11	−286.12
Time ∗ Signal	−0.42	0.54	−0.78	0.05	−8.49