I have an urgent question, I did my ARIMA model forecasting using the integration between R and Tableau. I need to check the accuracy of this forecast using the accuracy function in r but it doesn't work in tableau
here is my code for the forecasting
time <- ts(.arg1, start=c(2010,1), frequency=12);
arima_model <- auto.arima(time, D=1);
forecasted <- forecast(arima_model, h=.arg2);
n <- length(.arg1);
append( .arg1[(.arg2+1) :n], forecasted$mean, after=n-.arg2)",
SUM([Amount of Motors Sold]),SUM([PeriodToForcast]))
Thank you in advance
I've moved this post to Tableau External Services , where your question would probably get more replies.
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