CODEWITHSUNDEEP
rglmmodel-fitting
Mio
Mio

Reputation: 1

AIC comes out of NA when conducting TSR

Does anyone have ideas why when running a TSR in R Iend up getting NA for AIC to checkmodel fit?

my comands looks like this.

model2 <- glm(cases ~ fourier + time,analysis_data,family=quasipoisson)
summary(model2)

part of the returns below.

> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
>
> (Dispersion parameter for quasipoisson family taken to be 5.207482)
>
> Null deviance: 20466.2  on 481  degrees of freedom
>
> Residual deviance:  2151.8  on 446  degrees of freedom
> AIC: NA
>
> Number of Fisher Scoring iterations: 6

Upvotes: 0

Views: 26

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