Investopedia / Michela Buttignol Nonlinear regression is a form of regression analysis in which data is fit to a model and then expressed as a mathematical function. Simple linear regression ...

Extensions to nonlinear and nonnormal situations are possible but are not discussed here. Additional theory with examples is provided in Littell et al. (1996) and Verbeke and Molenberghs (1997). The ...

It is commonly applied to population growth rates calculated from linear models, but there has been no general approach to the analysis of nonlinear models. Nonlinearities in demographic models may ...