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Wednesday, June 29 • 1:18pm - 1:36pm
SpatialProbit for fast and accurate spatial probit estimations

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This package meets the emerging needs of powerful and reliable models for the analysis of spatial discrete choice data. Since the explosion of available and voluminous geospatial and location data, existing estimation techniques cannot withstand the course of dimensionality and are restricted to samples counting having less than a few thousand observations.
The functions contained in SpatialProbit allow fast and accurate estimations of Spatial Autoregressive and Spatial Error Models under Probit specification. They are based on the full maximization of likelihood of an approximate multivariate normal distribution function, a task that was considered as prodigious just seven years ago (Wang et al. 2009). Extensive simulation and empirical studies proved that these functions can readily handle sample sizes with as many as several millions of observations, provided the spatial weight matrix is in convenient sparse form, as is typically the case for large data sets, where each observation neighbours only a few other observations.
SpatialProbit relies amongst others on Rcpp, RcppEigen and Matrix packages to produce fast computations for large sparse matrixes.nnPossible applications of spatial binary choice models include spread of diseases and pathogens, plants distribution, technology and innovation adoption, deforestation, land use change, amongst many others.
We will present the results of the SpatialProbit package for a large database on land use change at the plot level.

avatar for Edzer Pebesma

Edzer Pebesma

professor, University of Muenster
My research interested is spatial, temporal, and spatiotemporal data in R. I am one of the authors, and maintainer, of sp and sf. You'll find my tutorial material at https://edzer.github.io/UseR2017/ - note that I will update it until shortly before the tutorial.

avatar for Davide  Martinetti

Davide Martinetti


Wednesday June 29, 2016 1:18pm - 1:36pm PDT