第二步建立一个单目标的优化模型，运用灰色预测的方法预测出单位书号的销售量。
Then an optimization model of a single goal is set up, with the application of the gray method of prediction to predict the sales volume of the unit book number.
再利用多元回归拟合的方法预测出06年一个书号代表的单位销售本数。
The unit sold book for each book number in 2006 was predicted by multivariable regression fitting method.
再利用多元回归拟合的方法预测出06年一个书号代表的单位销售本数。
The unit sold book for each book number in 2006 was predicted by multivariable regression fitting method.
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