On Tue, Feb 23, 2021 at 3:17 PM Graham Inggs <gin...@debian.org> wrote: > > Hi Dirk > > On Tue, 23 Feb 2021 at 15:34, Dirk Eddelbuettel <e...@debian.org> wrote: > > If it were me I would turn off the autopkgtest in r-cran-glmmtmb (maybe just > > on s390x) and move on. > > That would just be hiding the problem. > > If it is the kind of bug I described previously, it shows up more > often on big-endian systems, but it is still present on little-endian > systems, and will show up in the right (wrong) conditions. > You may be right on spot, Graham, or not.. Currently I don't have time to investigate ... also I *have* been a bit puzzled by the rankMatrix(*, "qr") -- Matrix-only -- discrepancy that Dirk found. I agree it *would* be good to dig further, but that needs a chunk of dedicated time (and "free head") which I don't have for now.
Apropos 'rabbit hole' : Isn't the origin -- long before the Matrix movie -- in Lewis Carrol's "Alice in Wonderland" (1865 !!): https://en.wikipedia.org/wiki/White_Rabbit ?? Best, Martin -- Martin Maechler, Seminar fuer Statistik, ETH Zurich
