灰色GM（1,1）模型预测高脂血症大鼠体重的探讨

为了探讨灰色模型应用于营养学的可能性，本文采用灰色系统ＧＭ（１，１）模型对高脂血症大鼠膳食治疗过程中体重的波动进行了预测。结果表明：（１）ＧＭ（１，１）模型预测方程对体重原始资料拟合精度高，平均误差小。（２）ＧＭ（１，１）模型近期预测值与实际值较吻合，外推预测效果好。（３）根据灰色系统改进理论，通过差分方程建立模型，预测效果与原ＧＭ（１，１）模型相近，运算简便。提示：ＧＭ（１，１）模型应用于营养上预测及评价膳食对机体生长发育的影响，有较高实用价值。

Application of Grey Series Forecasting Model for The Body Weight of Hyperchlolesterolemic Rat

We analyzed the possibility of grey series model in forecasting the body weight of hypercholesterolemic rats during the period of dietary treatment.The result showed that the grey series forecasting model had high precision and little deviation when applied for fitting and forecasting the time series x(t).This paper suggests that this method might be a useful tool in forecasting body in the nutritional research.