A von Bertalanffy Bivariate Diffusion Model: Computational Aspects and Application

This paper focused on bivariate fixed- and mixed effect parameters von Bertalanffy type stochastic differential equation, resulting in a new biologically plausible class of bivariate lognormal probability density functions of response variables. New developed bivariate lognormal type probability density function is illustrated using dataset provided by the Lithuanian National Forestry Inventory. Fixed- and random effect parameters are estimated by the maximum likelihood procedure.