各位老师好：
我有这样一个问题，用R语言做arima模型，最后做预测，
pre<- forecast(mod,12,level = c(99.5))
预测12期的数据，结果如下：
Point Forecast Lo 99.5 Hi 99.52020.000 902.9129 -181.5870 1987.4132020.019 886.2315 -374.7821 2147.2452020.038 850.8102 -442.0070 2143.6272020.058 850.8102 -442.0070 2143.6272020.077 850.8102 -442.0070 2143.6272020.096 850.8102 -442.0070 2143.6272020.115 850.8102 -442.0070 2143.6272020.135 850.8102 -442.0070 2143.6272020.154 850.8102 -442.0070 2143.6272020.173 850.8102 -442.0070 2143.6272020.192 850.8102 -442.0070 2143.6272020.212 850.8102 -442.0070 2143.627 |
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