Package: trama.spatial 0.1.1

trama.spatial: Geostatistics Collection for trama

Nodes for geostatistics in a trama graph: declaring a regionalised variable with coordinates, projection and boundary; exploratory spatial display; classical and robust empirical variograms, omnidirectional or directional, with large-scale trend removed; fitting spherical, exponential, Gaussian and Matern models by ordinary and weighted least squares, reporting nugget, partial sill, range and practical range; and ordinary and simple kriging onto a boundary-clipped grid, carrying the kriging variance so the prediction map always has an uncertainty map beside it. The point object carries its coordinates, projection and boundary, so no later node asks for them again. Builds on trama.data for tables and trama.view for plots.

Authors:Pedro Mambelli Fernandes [aut, cre], João Paulo Assis Bonifácio [aut]