广义 R 平方 (Naglekerkes R^2)
does anybody know how to compute Naglekerkes generalized R Squared for GLMs using R? And does it makes any sence to use it for count data regression?
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尝试
在各种包中查找函数：最有用的可能是
rms包（Design包的更新版本）中的lrm和fmsb包中的 >NagelkerkeR2lrm不会为您做到这一点。但另一个应该。我不明白为什么它不适用于计数数据（泊松回归）......尽管总是有人争论 R2 的各种类似物一旦超出了 R2 的领域有多大用处普通线性模型...
Try
This finds functions in various packages: probably most useful are
lrmin thermspackage (an updated version of theDesignpackage) andNagelkerkeR2in thefmsbpackage. Although if by "count data regression" you mean a Poisson rather than a binomial/binary model,lrmwon't do it for you. But the other should.I don't see why it wouldn't apply to count data (Poisson regression) ... although there is always debate about how useful the various analogues of R2 are once you get outside the realm of ordinary linear models ...