[R-sig-Geo] Anova and confidence intervals for kppm models in spatstat

[ASANTOS]

Dear Members,

              I have two questions, first if there are approaches like 
anova.ppm for comparing a clustered point process models kppm in 
spatstat package (example above)? And second the same question for 
estimate the confidence intervals for kppm model parameters, like 
confint() function?

data(bei)
## Model with elevation
fit1 <- kppm(bei, ~elev, "Thomas", covariates = bei.extra)
fit1
##Null model
fit.null <- kppm(bei, ~1, "Thomas", covariates = bei.extra)
fit.null
#Comparing with ANOVA
anova.ppm(fit1,fit.null, test="Chi")
#but don't have anova.kppm?
##Confidence intervals
confint(fit1)

Thanks,

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Alexandre dos Santos
Proteção Florestal
IFMT - Instituto Federal de Educação, Ciência e Tecnologia de Mato Grosso
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         alexandre.santos at cas.ifmt.edu.br
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