Re: [R] Changes to stats::glm function between R versions 3.4.0 and 3.5.1

2020-04-22 Thread Purver, Mark
Dear Martin, Thanks so much for this response. I have attempted a reproducible example below. The 'real' issue involves a much larger data set, but the very small example below produces very small differences in the standard errors between different R versions, which may have the same root

Re: [R] Changes to stats::glm function between R versions 3.4.0 and 3.5.1

2020-04-18 Thread Martin Maechler
> Purver, Mark > on Thu, 16 Apr 2020 10:02:09 + writes: > Hi all, > Does anyone know whether there was a change to the algorithm of the glm function between versions 3.4.0 and 3.5.1 of the stats package? I noticed the introduction of the 'singular.ok' option, but I'm

[R] Changes to stats::glm function between R versions 3.4.0 and 3.5.1

2020-04-16 Thread Purver, Mark
Hi all, Does anyone know whether there was a change to the algorithm of the glm function between versions 3.4.0 and 3.5.1 of the stats package? I noticed the introduction of the 'singular.ok' option, but I'm seeing more fundamental differences in the output of Generalised Linear Models between