In [[statistics]], '''multivariate adaptive regression splines''' ('''MARS)''') is a form of [[regression analysis]] introduced by [[Jerome H. Friedman]] in 1991.<ref>{{Cite journal | last1 = Friedman | first1 = J. H. | doi = 10.1214/aos/1176347963 | title = Multivariate Adaptive Regression Splines | journal = The Annals of Statistics | volume = 19 | pages = 1 | year = 1991 | pmid = | pmc = |mr=1091842 | zbl = 0765.62064 | jstor = 2241837}}</ref> It is a [[non-parametric regression]] technique
and can be seen as an extension of [[linear model]]s that automatically models nonlinearities and interactions between variables.
