[R] se from predict.glm

[Chong Gu]

I am not sure whether it is a design decision or just an oversight.

When I ask for the standard errors of the predictions with

  predict(budwm.lgt,se=TRUE)

where budwm.lgt is a logistic fit of the budworm data in MASS, I got

  Error in match.arg(type) : ARG should be one of response, terms

If one is to construct a CI for the fitted binomial probability,
wouldn't it be more natural to do it on the link scale before
transforming to the probability scale?

Of course, knowing a bit about what's going on inside glm, I could use
predict.lm to get what I want, but I am curious why se is not made
available for the link prediction in predict.glm.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._