https://communities.sas.com/t5/SAS-Enterprise-Guide/creating-forecast-fractiles-for-fan-charts/m-p/1442#M449 Maybe you should look at FORECAST and ARIMA procedures (or some forecasting tasks in Enterprise Guide) : those procedures can model your time series and predict the future with a growing confidence interval as times goes by...<BR /> Unfortunately, I'm not keen on time series for myself. Thu, 28 Sep 2006 13:15:32 GMT Olivier 2006-09-28T13:15:32Z https://communities.sas.com/t5/SAS-Enterprise-Guide/creating-forecast-fractiles-for-fan-charts/m-p/1441#M448 Dear all,<BR /> <BR /> I wonder whether anybody knows of any resouce (e.g., sample code, paper, etc.) on the construction with SAS of forecast confidence intervals that "grow" as the forecast horizon expands. Ultimately, I am trying to arrive to a set of fractiles for the forecast confidence intervals that can be graphed as "fan charts".<BR /> <BR /> thanks for any information,<BR /> J. Wed, 27 Sep 2006 15:23:30 GMT https://communities.sas.com/t5/SAS-Enterprise-Guide/creating-forecast-fractiles-for-fan-charts/m-p/1441#M448 deleted_user 2006-09-27T15:23:30Z https://communities.sas.com/t5/SAS-Enterprise-Guide/creating-forecast-fractiles-for-fan-charts/m-p/1442#M449 Maybe you should look at FORECAST and ARIMA procedures (or some forecasting tasks in Enterprise Guide) : those procedures can model your time series and predict the future with a growing confidence interval as times goes by...<BR /> Unfortunately, I'm not keen on time series for myself. Thu, 28 Sep 2006 13:15:32 GMT https://communities.sas.com/t5/SAS-Enterprise-Guide/creating-forecast-fractiles-for-fan-charts/m-p/1442#M449 Olivier 2006-09-28T13:15:32Z