R help - Jan 2011 - test statistic in anova.glm when quasi family is used

When quasi family (not quasipoisson or quasibinomial) is used in glm,
what is the appropriate test statistic in anova.glm?
Help of anova.glm tells ?For models with known dispersion (e.g.,
binomial and Poisson fits) the chi-squared test is most appropriate, and
for those with dispersion estimated by moments (e.g., gaussian,
quasibinomial and quasipoisson fits) the F test is most appropriate?. I
assume that  F is appropriate in the case of quasi (not quasipoisson or
quasibinomial). Is this correct?


Ei Kasuya

Eiiti Kasuya <ekasuscb <at> kyushu-u.org> writes:
> 
> When quasi family (not quasipoisson or quasibinomial) is used in glm,
> what is the appropriate test statistic in anova.glm?
> Help of anova.glm tells ?For models with known dispersion (e.g.,
> binomial and Poisson fits) the chi-squared test is most appropriate, and
> for those with dispersion estimated by moments (e.g., gaussian,
> quasibinomial and quasipoisson fits) the F test is most appropriate?. I
> assume that  F is appropriate in the case of quasi (not quasipoisson or
> quasibinomial). Is this correct?
> 
> Ei Kasuya
> 
  Yes.

  References are Venables and Ripley (i.e. MASS) and Crawley's
Statistical Data Analysis book.

  Ben Bolker