Morbidity Research on Grey Forecast Model

This paper researches on the morbidity problem for the GM(1,1) model with the accumulating method based on the condition number theory. It proves that we can get a new healthier model by make a multiple transformation on the initial data, and the transformation doesn’t affect the precision of the model. Therefore, morbidity problem for the GM(1,1) model with the accumulating method is resolved well.