[R] AIC and significance tests

David Richard John Pleydell D.R.J.Pleydell at pgr.salford.ac.uk
Thu Sep 4 14:07:55 CEST 2003

I have two geostatistical models from geoR.  An ordinary kriging model with 
AIC=-148.6 and a universal kriging model with AIC=-156.7, there are 345 
data points.  The improvement shown by the AIC by adding a trend component 
to the model seems quite small given the number of data points, is there a 
test to see if the improvement to the model fit is significant?


David Pleydell
D 31 Peel Building
Telford Institute of Environmental Systems
School of Environment and Life Sciences
University of Salford
M5 4WT
phone: +44 161 2952094
fax:  +44 161 295 5015

More information about the R-help mailing list