Abstract
With its undetermined parameters estimated by utilizing a discrete method,a Logistic model of n variables has been constructed in this paper.We obtain the least square estimators of the coefficients of every equation of the model in relevant with its minimal error estimators. Moreover,we also investigate the synchronous interrelationship among three principal industries of China in a quantitive style.We not only calculate the satisfied numbers of parameter estimators,but also depict the least reasonable interrelated curves of the industry development via the method of the numerical simulation.However,we also propose some useful suggestions on the defect of the model and slight modifications of the estimation approach.
Key words: Logistic model of several variables; Discrete method; Three principal industries; Numerical simulation