[R] bgroup not rendering properly

[Uwe Ligges]

Fascinating: I see it with R-4.2.2  and R-patched  with the windows() 
device. But all works well with R-4.2.1 and R-devel.

I'll try to investigate.

Best,
Uwe Ligges







On 13.12.2022 14:59, Derek Ogle wrote:
> Thank you all for your help. I am using Windows. I ran the following both
> in R 4.2.2 using RStudio and not using RStudio (but using the R GUI). In
> both runs, plots within the GUI/RStudio and in the PNG output exhibited the
> same issue that I reported originally., whereas plots in the PDF output
> were perfect (no issue).
> 
> As asked, the first dev.cur() or .Device says "null device" whereas the
> second says "Windows" when using the R GUI and "RStudioGD" when using
> RStudio.
> 
> It sounds like this is likely a windows-related bug that will be fixed in
> the next version. I can wait for that.
> 
> ----
> dev.cur()
> .Device
> plot(0,xlim=c(0,1),ylim=c(0,1))
> text(0.5,0.5,expression(bgroup('(',atop(x,y),')')))
> 
> png("bgroup_R422.png")
> plot(0,xlim=c(0,1),ylim=c(0,1))
> text(0.5,0.5,expression(bgroup('(',atop(x,y),')')))
> dev.off()
> 
> pdf("bgroup_R422.pdf")
> plot(0,xlim=c(0,1),ylim=c(0,1))
> text(0.5,0.5,expression(bgroup('(',atop(x,y),')')))
> dev.off()
> 
> dev.cur()
> .Device
> plot(0,xlim=c(0,1),ylim=c(0,1))
> text(0.5,0.5,expression(bgroup('(',atop(x,y),')')))
> 
> 
> On Tue, Dec 13, 2022 at 5:48 AM Jinsong Zhao <jszhao using yeah.net> wrote:
> 
>>
>>
>> On 2022/12/13 18:02, Martin Maechler wrote:
>>>>>>>> Jinsong Zhao
>>>>>>>>       on Tue, 13 Dec 2022 17:07:00 +0800 writes:
>>>       > I don
>>>
>>>       >  On 2022/12/13 10:13, Derek Ogle wrote:
>>>       >> bgroup() from plotmath does not render properly for
>>>       >> me. For example
>>>       >>
>>>       >> plot(0,xlim=c(0,1),ylim=c(0,1))
>>>       >> text(0.3,0.5,expression(bgroup('(',atop(x,y),')')))
>>>       >> text(0.7,0.5,expression(group('(',atop(x,y),')')))
>>>
>>> Almost surely a  Windows-only problem i.e. bug,
>>> See also the bug fixed yesterday, PR#18440,
>>> https://bugs.r-project.org/show_bug.cgi?id=18440
>>>
>>>
>> I do not observe the problem in that bug report. All works fine.
>>
>> Best,
>> Jinsong
>>
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>>
> 
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> 
> ______________________________________________
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.