SSN (version 1.1.7)

AIC: AIC for glmssn objects

Description

AIC.glmssn is a method that calculates AIC for fitted glmssn objects.

Usage

"AIC"(object, ..., k = 2)

Arguments

object

an object of class glmssn

...

optionally more fitted model objects

k

numeric, the penalty per parameter to be used; the default k = 2 is the classical AIC.

Value

a numeric AIC value for the specified glmssn object

Details

AIC is a generic function and this implements a method for glmssn objects

See Also

glmssn

Examples

library(SSN)
# NOT RUN 
#mf04p <- importSSN(system.file("lsndata/MiddleFork04.ssn", 
#  package = "SSN"), predpts = "pred1km", o.write = TRUE)
#  use SpatialStreamNetwork object mf04p that was already created
data(mf04p)
# for examples, copy MiddleFork04.ssn directory to R's temporary directory
copyLSN2temp()
#make sure mf04p has the correct path, will vary for each users installation
mf04p <- updatePath(mf04p, paste0(tempdir(),'/MiddleFork04.ssn'))
   
# get some model fits stored as data objects
data(modelFits)
#NOT RUN use this one
#fitSp <- glmssn(Summer_mn ~ ELEV_DEM + netID,
#    ssn.object = mf04p, EstMeth = "REML", family = "Gaussian",
#    CorModels = c("Exponential.tailup","Exponential.taildown",
#    "Exponential.Euclid"), addfunccol = "afvArea")
#make sure fitSP has the correct path, will vary for each users installation
fitSp$ssn@path <- paste0(tempdir(),'/MiddleFork04.ssn')

#note the model was fitted using REML, so fixed effects have 
# been integrated out
summary(fitSp)
AIC(fitSp)