[Rd] residuals.glm for glm(..., y = FALSE) (PR#9124)

[Achim.Zeileis at wu-wien.ac.at]

Last week I ran into a problem with residuals.glm() for GLMs fitted with
  glm(..., y = FALSE)
For such fits, the residuals of type "deviance", "pearson" and "response"
can't be computed (see example below). The reason is that residuals.glm()
uses
  y <- object$y
which obviously can't work for such fits.

I've checked ?glm and ?residuals.glm and did not find it mentioned
explicitely...hence this looks like a bug to me. (I've posted this last
week on R-devel and received no reply, hence I resubmitted it to R-bugs so
that it does not get lost.)

Best,
Z

## example for poisson GLM from ?glm
  d.AD <- data.frame(treatment = gl(3,3), outcome = gl(3,1,9),
    counts = c(18,17,15,20,10,20,25,13,12))
  glm.D93 <- glm(counts ~ outcome + treatment, family = poisson,
    data = d.AD, y = FALSE)

## residuals cannot be computed
  residuals(glm.D93, type = "deviance")
  residuals(glm.D93, type = "pearson")
  residuals(glm.D93, type = "response")