Anova Tables for gamMRSea Models — anova.gamMRSea • MRSea

Calculates type-III analysis-of-variance tables for model objects produced by gamMRSea (in the MRSea package). Wald chisquare tests are calculated by default although, F-tests may be specified.

Usage

# S3 method for gamMRSea
anova(object, varshortnames = NULL, panelid = NULL, test = "Wald")

Arguments

object: A gamMRSea model object
varshortnames: (default = NULL). Character vector denoting the short names to use for any smooth terms. May already be specified as part of the model object.
panelid: vector of length of the data used in object. Specified if robust standard errors are to be used.
test: (default='wald'). May also specify "F".

Value

An object of class "anova".

Examples


# load data
data(ns.data.re)
ns.data.re$foldid<-getCVids(ns.data.re, folds=5)
 
model<-gamMRSea(birds ~ observationhour + as.factor(floodebb) + as.factor(impact),  
              family='poisson', data=ns.data.re)
anova(model)        
#> Analysis of 'Wald statistic' Table
#> Model: poisson, link: log
#> Response: birds
#> Marginal Testing
#> Max Panel Size = 1 (independence assumed); Number of panels = 27798
#> 
#>                     Df     X2 P(>|Chi|)    
#> observationhour      1 3722.9 < 2.2e-16 ***
#> as.factor(floodebb)  2  658.1 < 2.2e-16 ***
#> as.factor(impact)    1   18.9 1.376e-05 ***
#> ---
#> Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1