r packages smoothing curve do you build a zee is there a package for smoothing spline how to smooth spline geometry r does r smooth spline what package can i use to smooth a spline in r what is a smooth spline in gee what package for r allows smoothing splines? r packages for smoothing spline what software to use for smoothing splines what package to use for spline smoothing can you smooth a GEE in r what package allows for smoothing splines in r can smoothing spline be used in r is r package capable of smoothing spline r packages which allows smoothing spline can i smooth out a spline in r what package allows smoothing spline in gee? what package is needed to write a smoothing spline is r spline smoothing