A Blog on Analytics and Marketing

SAS, Marketing, Predictive Modeling, Statistics

PROC GAM – Detect the Seasonality

Posted by phillippeng on October 2, 2008

Fluctuations embedded in a data series over time may come from random fluctuations or latent seasonality. Very often, we need to test if there’s a true seasonality trend. If so, what seasonality pattern is it? The example in the following link provides a perfect illustration on how to examine the seasonality using SAS PROC GAM.

proc gam

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