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French Equivalent: Rapport d'amplitude

Some time series exhibit seasonal movements which are regular in phase but vary in amplitude from year to year. The actual amplitude in any year, expressed as a proportion of the average amplitude taken over a long period is called the amplitude ratio. It affords a measure of departure from normal seasonal variation.

Source Publication:
A Dictionary of Statistical Terms, 5th edition, prepared for the International Statistical Institute by F.H.C. Marriott. Published for the International Statistical Institute by Longman Scientific and Technical.

Statistical Theme: Methodological information (metadata)

Created on Tuesday, May 7, 2002

Last updated on Thursday, April 24, 2003