Tobler is a free web app that offers an intuitive step-by-step process for estimation of spatial econometric models, including a basic spatial visualization, creating of spatial weighting matrix and spatial correlation tests. Currently, it is possible to estimate several cross-section and panel models, with different estimators. Estimates of impacts are provided, when applicable.
This app was entirely created with R using the Shiny library. Spatial data is handled by the RGDAL, cleangeo and leaflet libraries. Spatial dependence tests and spatial models are provided by the spdep, spatialreg, sphet and splm library.
The name is a tribute to the geographer Waldo R. Tobler and his First Law of Geography: “Everything is related to everything else, but near things are more related than distant things.”
Tobler is being developed by Raphael Saldanha, PhD and researcher from Oswaldo Cruz Foundation (FioCruz) and Eduardo Almeida, professor of spatial econometrics at the Federal University of Juiz de Fora (UFJF).
Tobler is available for free here. You can acess it using computers (desktop or laptop), tablets or smartphones.
This is still a prototype. All results must be checked and validated by the users.
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