问题描述
在预测包中找不到forecast.Arima 函数.错误显示forecast.Arima"未找到.可以使用预测功能代替forecast.Arima"功能吗?我正在使用预测 8.1.
Unable to find forecast.Arima function in forecast package. Error displayed "forecast.Arima" not found. Can forecast function be used in place of 'forecast.Arima' function ? I am using forecast 8.1.
其次，ARIMA 的输出在未来日期的平均值持平.这是因为我正在使用预测"功能.
Secondly, the output from ARIMA is flat at mean for the future dates. Is this because I am using 'forecast' function.
图书馆(预测)
arima.forecast <- forecast(arima1, h=30)
推荐答案
forecast.Arima 没有丢失，只是没有在 v8.1+ 中导出.改用 forecast，它会在需要时调用 forecast.Arima.
forecast.Arima is not missing, it is just not exported in v8.1+. Use forecast instead, which will call forecast.Arima when required.
平坦的预测很常见.请参阅 https://robjhyndman.com/hyndsight/flat-forecasts/
Flat forecasts are common. See https://robjhyndman.com/hyndsight/flat-forecasts/
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