Services on Demand
Journal
Article
Indicators
Cited by SciELO
Access statistics
Related links
Cited by Google
Similars in SciELO
Similars in Google
Share
Revista Colombiana de Estadística
Print version ISSN 0120-1751
Abstract
GIRALDO, RAMÓN; MATEU, JORGE and DELICADO, PEDRO. geofd: An R Package for Function-Valued Geostatistical Prediction. Rev.Colomb.Estad. [online]. 2012, vol.35, n.3, pp.385-407. ISSN 0120-1751.
Spatially correlated curves are present in a wide range of applied disciplines. In this paper we describe the R package geofd which implements ordinary kriging prediction for this type of data. Initially the curves are pre-processed by fitting a Fourier or B-splines basis functions. After that the spatial dependence among curves is estimated by means of the trace-variogram function. Finally the parameters for performing prediction by ordinary kriging at unsampled locations are by estimated solving a linear system based estimated trace-variogram. We illustrate the software analyzing real and simulated data.
Keywords : Functional data; Smoothing; Spatial data; Variogram.