请问为什么用arima模型做预测结果为一条直线;用什么来衡量时间序列模型预测的好坏?用的r语言 知乎 Template




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tomski请问为什么用arima模型做预测结果为一条直线;用什么来衡量时间序列模型预测的好坏?用的r语言 知乎 coloring