what package can fit nonlinear linear model in r how to fit time series model can you fit a model with non-parametric components can r fit dynamic linear models can you model seasonality what program to use to fit non parametric model which package fits a time series model? what package should fit a nonlinear model what is the fit function for a time series how to find seasonality in an unparametric model how to use r to find seasonality do you fit non linear r models r fit a model can r fit periodic model what does r fit to the time series which package fits a nonlinear model r sigma model how do you fit a model in r what is the correct way to fit a nonparametric model what is the function of the harmonic function in r