As referring to the maximum likelihood estimate in mathematical statistics, it can be calculate the conditional probability of main clinic symptoms and signs of TCM heart disease's qi -blood syndrome, such as heart qi dificiency syndrome, heart blood deficiency syndrome, heart vessel stasis syndrome; and that control group's syndrome such as lung qi deficiency syndrome, liver blood deficiency syndrome, liver blood stasis syndorme. Also it can be establish the Index Table of Quantitative Diagnostic Study of Clinic Symptoms and Signs of Qi - blood Syndrome of TCM Heart Disease. According to inde...