中文说明：
改进的GM（1，1）程序，可实现时间序列的灰色等维新息预测，采用弃旧纳新的原则。
English Description：
Improved GM (1, 1) program, which can realize reform interest such as time series of gray prediction, based on the principle of abandon one part.
Improved GM (1, 1), gray prediction to improve
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中文说明：
改进的GM（1，1）程序，可实现时间序列的灰色等维新息预测，采用弃旧纳新的原则。
English Description：
Improved GM (1, 1) program, which can realize reform interest such as time series of gray prediction, based on the principle of abandon one part.