A few days ago I uploaded to CRAN a new package called segmented. The package contains functions to fit (generalized) linear models with `segmented' (or `broken-line' or `piecewise linear') relationships between the response and one or more explanatory variables according to methodology described in Muggeo VMR (2003), Estimating regression models with unknown break-points, Statistics in Medicine, 22, 3055-3071. I would be very grateful for comments and suggestions, best, vito _______________________________________________ R-packages mailing list R-packages at stat.math.ethz.ch https://www.stat.math.ethz.ch/mailman/listinfo/r-packages