nobs.glm

Hi all,

The nobs method  of (MASS:::polr class) takes into account of weight,
but nobs method of glm does not. I wonder what is the rationale of
such design behind nobs.glm. Thanks in advance. Best Regards.

library(MASS)
house.plr <- polr(Sat ~ Infl + Type + Cont, weights = Freq, data = housing)
house.logit <- glm(I(Sat=='High') ~ Infl + Type + Cont, binomial,weights = Freq, data = housing)
nobs(house.plr)

[1] 1681

nobs(house.logit)

[1] 72

Wincent Ronggui HUANG
Sociology Department of Fudan University
PhD of City University of Hong Kong
http://homepage.fudan.edu.cn/rghuang/cv/