when to use arima in forecast how is forecasting r which model is used to forecast in r? what model forecast does not have equal frequency? can i use arima(1 what is modelforecast in r what is the output of r for forecast r error when a model has no frequency when you use arima, what does the output of r say? can r model model forecast r error - not all series have the same frequency arima r code error what model does arima use what is the modelforecast output what is r error in modelforecast what is modelforecast used for? what model forecasting is used what model forecast what r code shows an error in.cbind what is the model for arima