Bivariate Nonlinear Diffusion Degradation Process Modeling via Copula and MCMC

Table 3

Parameter estimation results without considering the dependency.

Parameter	Mean	Standard errors	MC error	95% HPD interval
𝜇𝛽1	−3.005	0.5444	0.0214	(−4.166, −2.082)
𝜎𝛽1	0.3082	0.2619	0.0085	(0.0317, 0.9514)
𝜎𝐵1	0.3500	0.0547	0.0010	(0.2611, 0.4750)
𝑏1	0.4719	0.0355	0.0014	(0.4004, 0.5389)
𝜇𝛽2	−7.894	2.2860	0.1033	(−12.65, −4.198)
𝜎𝛽2	0.7973	0.9306	0.0356	(0.0331, 3.228)
𝜎𝐵2	0.7228	0.1056	0.0015	(0.5486, 0.9623)
𝑏2	0.3088	0.0628	0.0029	(0.1941, 0.4275)