search for: bspline3

...cubic-b spline but I do not know how to determine the equation for this spline nor how to integrate it/differentiate it (to obtain plots similar to 3c & f in Chaloupka & Limpus (1997)). What should I do next? >size <- seq(100,600,along.with=fitted(m1)) >grw <- fitted(m1) >bspline3 <- gam(grw~s(size, bs="cr", k=3)) >plot(grw~size,ylab="Growth (mm/yr)", xlab="Curved Carapace Length (mm)") #figure attached >lines(fitted(bspline3)~size, lwd=2) Thank you very much for any help! Claudia