master to main

Author: rsbivand

README.md

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 A collection of all the estimation functions for spatial cross-sectional models (on lattice/areal data using spatial weights matrices) contained up to now in **spdep**, **sphet** and **spse**. These model fitting functions include maximum likelihood methods for cross-sectional models proposed by Cliff and Ord (1973, ISBN: 0850860369) and (1981, ISBN: 0850860814), fitting methods initially described by Ord (1975) https://doi.org/10.1080/01621459.1975.10480272. The models are further described by Anselin (1988) https://doi.org/10.1007/978-94-015-7799-1. Spatial two stage least squares and spatial general method of moment models initially proposed by Kelejian and Prucha (1998) https://doi.org/10.1023/A:1007707430416 and (1999) https://doi.org/10.1111/1468-2354.00027 are provided. Impact methods and MCMC fitting methods proposed by LeSage and Pace (2009) https://doi.org/10.1201/9781420064254 are implemented for the family of cross-sectional spatial regression models. Methods for fitting the log determinant term in maximum likelihood and MCMC fitting are compared by Bivand et al. (2013) https://doi.org/10.1111/gean.12008, and model fitting methods by Bivand and Piras (2015) https://doi.org/10.18637/jss.v063.i18; both of these articles include extensive lists of references. **spatialreg** >= 1.1-1 corresponds to **spdep** = 1.1-1, in which the model fitting functions are deprecated and pass through to **spatialreg**, but will mask those in **spatialreg**. From versions 1.2-1, the functions will be made defunct in **spdep**.
 
 For now **spatialreg** only has functions from **spdep**, where they are shown as deprecated. This package only loads the namespace of **spdep**; if you attach it, the same functions in the other package will be masked. Some feed through adequately, others do not (mostly where `stats::model.matrix()` facilities do not like the extra level of passing arguments).
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+Default branch now `main`.