That may actually be the case for EVERY default plot, if I understand correctly. The default S# plot is defined as
## Default S3 method: plot(x, y = NULL, type = "p", xlim = NULL, ylim = NULL, log = "", main = NULL, sub = NULL, xlab = NULL, ylab = NULL, ann = par("ann"), axes = TRUE, frame.plot = axes, panel.first = NULL, panel.last = NULL, asp = NA, xgap.axis = NA, ygap.axis = NA, ...) By putting in the comma, unless I am mistaken, you are effectively saying the second element is NULL, which is how it's naturally defined. Thanks, Avi On Fri, Sep 16, 2022 at 2:33 PM Rui Barradas <ruipbarra...@sapo.pt> wrote: > > Hello, > > Why doesn't the comma throw an error? > > > plot(1:5,) # works, no complaints > > > Shouldn't this be considered a bug? I would expect the parser to at > least give a warning. > > > sessionInfo() > R version 4.2.1 (2022-06-23 ucrt) > Platform: x86_64-w64-mingw32/x64 (64-bit) > Running under: Windows 10 x64 (build 22000) > > Matrix products: default > > locale: > [1] LC_COLLATE=Portuguese_Portugal.utf8 > LC_CTYPE=Portuguese_Portugal.utf8 > [3] LC_MONETARY=Portuguese_Portugal.utf8 LC_NUMERIC=C > > [5] LC_TIME=Portuguese_Portugal.utf8 > > attached base packages: > [1] stats graphics grDevices utils datasets methods base > > loaded via a namespace (and not attached): > [1] compiler_4.2.1 > > > Rui Barradas > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel