Ian McLeod’s Contribution to Time Series Analysis—A Tribute

Ian McLeod’s contributions to time series are both broad and influential. His work has put Canada and the University of Western Ontario on the map in the time series community. This article strives to give a partial picture of McLeod’s diverse contributions and their impact by reviewing the development of portmanteau statistics, long memory (persistence) models, the concept of duality in McLeod’s work, and his contributions to intervention analysis.