A function to return the variance covariance matrix of the parameters beta, omega and eta
# S3 method for mlspatsurv
vcov(object, ...)the variance covariance matrix of the parameters beta, omega and eta
an object inheriting class mcmcspatsurv
other arguments, not used here
print.mcmcspatsurv, quantile.mcmcspatsurv, summary.mcmcspatsurv, frailtylag1, spatialpars, hazardpars, fixedpars, randompars, baselinehazard, predict.mcmcspatsurv, priorposterior, posteriorcov, MCE, hazardexceedance