[R] How to make try to catch warnings in logistic glm

[Dieter Menne]

Fredrik Nilsson-5 wrote:
> 
>>From an earlier post I got the impression that one could promote
> warnings from a glm to errors (presumably by putting
> options(warn=1)?), then try() would flag them as errors. I’ve spent
> half the day trying to do this, but no luck. Do you have an explicit
> solution?
> 
> 

You were rather close... 

1) use warn=2
2) make sure to get the | and || right (this is nasty, I never learn it)

Dieter


 options(warn=2) #
 my.glm<-try(glm(outcome~ald + fat+ hstop + btun + time, data=DF,
family=binomial),FALSE)
 failed <- inherits(my.glm,"try-error")
 if(failed || !my.glm$converged)
 {
   res[i, 1:6]<-NA
 } else
 {


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