Bagplots, boxplots and outlier detection for functional data

Australian Statistics Conference. Melbourne, July 2008. Where: First International Workshop on Functional and Operatorial Statistics, Toulouse Where : Australian Statistical Conference Melbourne, Australia Speakers: Professor Rob J Hyndman, Monash University & Han Lin Shang, Monash University Abstract: We propose some new tools for visualizing functional data and for identifying functional outliers. The proposed tools make use of robust principal component analysis, data depth and highest density regions. We compare the proposed outlier detection methods with the existing “functional …