Introduction to seasonal adjustment

Open to
All staff in the Government Statistical Service
Training category
Type of training
Face to face
One and a half days
Analysis Function Capability Team
Office for National Statistics


Note that the online training courses Introduction to time series, Introduction to seasonal adjustment and Introduction to forecasting should be completed before undertaking this course.

This classroom and computer-based session aims to provide participants with a basic introduction to the theory behind seasonal adjustment and the seasonal adjustment process.

An overview is also given of the US Census Bureau’s software X-13ARIMA-SEATS, which is the GSS recommended software for seasonal adjustment.

Learning outcomes:

By the end of the course, through a mixture of theory and practical application of X-13ARIMA-SEATS, participants will gain an understanding of:

  • the basic theory underpinning seasonal adjustment
  • how to perform basic seasonal adjustment using X-13ARIMA-SEATS
  • how to quality assure seasonal adjustment
  • issues to consider when publishing seasonally adjusted estimates

How to book:

These courses are provided depending on demand. If you would like access to this course, please contact



Related courses:

Intermediate seasonal adjustment