Abstract
Application of multivariate analysis in the clinical medicine has been widespread rapidly with the progress and prevalence of computers. The discriminant analysis, above all, has been found in many cases because it is proper method of decision to diagnose and treat. In 1967, I applied the discriminant analysis by computer to diagnose liver diseases and it was, in this case, superior to diagnosis by physicians. Since 1990, we have applied the discriminant analysis in treadmill diagnosis and concluded the utility in prospective study. The discriminant analysis suggested that the treadmill diagnosis should be used easily, accurately and universally when heart rate and ST-T change are measured automatically. Simultaneously, we researched references to objectivise the treadmill diagnosis and found a lot of reports and various aspects of the discriminant analysis. The applications of the discriminant analysis have possibility of diagnosing various diseases and could be applied to predict the treatment effects. The discriminant analysis should be expected to wider and newer clinically in the future
