1 Reply Latest reply on May 20, 2018 10:03 PM by lei.chen.0

    How to show accuracy in my ARIMA model in Tableau

    Nisrine Ferahi

      Hello everybody

      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

       

      SCRIPT_REAL("library(forecast);

      time <- ts(.arg1, start=c(2010,1), frequency=12);

      arima_model <- auto.arima(time, D=1);

      forecasted <- forecast(arima_model, h=.arg2[1]);

      n <- length(.arg1);

      append( .arg1[(.arg2[1]+1) :n], forecasted$mean, after=n-.arg2[1])",

      SUM([Amount of Motors Sold]),SUM([PeriodToForcast]))

       

      Thank you in advance