The analysis of longitudinal data using mixed model L-splinesFaculty of Informatics - Papers (Archive)
AbstractL-splines are a large family of smoothing splines defined in terms of a linear differential operator. This article develops L-splines within the context of linear mixed models and uses the resulting mixed model L-spline to analyze longitudinal data from a grassland experiment. In the spirit of time-series analysis, a periodic mixed model L-spline is developed, which partitions data into a smooth periodic component plus smooth long-term trend.
Citation InformationS. J Welham, Brian R Cullis, M. J Kenward and R Thompson. "The analysis of longitudinal data using mixed model L-splines" (2006) p. 392 - 401
Available at: http://works.bepress.com/bcullis/28/