search for: splinelik

...a series of spline fits to a simulated exponentially decreasing data set with some heteroscedasticity; a more detailed example comparing fits of lm() and gls() to a simpler simulation [linear regression] shows similar, although less extreme, behavior, and is posted at http://www.zoo.ufl.edu/bolker/splinelik.Rnw (or http://www.zoo.ufl.edu/bolker/splinelik.pdf ). Apologies for boneheadedness, but I have taken this as far as I can for now ... ------------- ## simulate "data" (exponential decrease w/ heterosced.) set.seed(1001) n=1000 x = sort(runif(n)) grow_det = exp(-2*x) grow_var = 0.1*g...