Suppressed "graphical parameter" warnings reviving themselves magically

What's going on here?

$ R --vanilla --quiet
plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
Warning messages:
1: "foo" is not a graphical parameter
2: "foo" is not a graphical parameter

Note how the warnings are revived in that second "NULL" call.  I can
reproduce this in R 4.4.3 and R-devel (2025-03-19 r88003). This might
be specific to "graphical parameter" warnings, because it won't happen
with, say, suppressWarnings({ log(-1) }).

It also doesn't appear if I call split up the first call into to
different REPL calls;

$ R --vanilla --quiet
plot.new()
suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL

/Henrik

PS. I thought I had sent this many months ago, but I just now found
this message in my draft folder, so now I'm not sure. Sorry, if this
is a duplicate.
I don't know what's going on, but I see a version of it in R 4.4.2 on 
MacOS in the console, but not in R.app.

The difference is I only get one of the warnings, and only on the first 
attempt:
$ R

R version 4.4.2 (2024-10-31) -- "Pile of Leaves"
Copyright (C) 2024 The R Foundation for Statistical Computing
Platform: aarch64-apple-darwin20

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
Warning message:
"foo" is not a graphical parameter 
plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
In R.app I don't seem to see it at all.

Duncan Murdoch
What's going on here?

$ R --vanilla --quiet
plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
Warning messages:
1: "foo" is not a graphical parameter
2: "foo" is not a graphical parameter

Note how the warnings are revived in that second "NULL" call.  I can
reproduce this in R 4.4.3 and R-devel (2025-03-19 r88003). This might
be specific to "graphical parameter" warnings, because it won't happen
with, say, suppressWarnings({ log(-1) }).

It also doesn't appear if I call split up the first call into to
different REPL calls;

$ R --vanilla --quiet
plot.new()
suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL

/Henrik

PS. I thought I had sent this many months ago, but I just now found
this message in my draft folder, so now I'm not sure. Sorry, if this
is a duplicate.

______________________________________________
R-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
?s 05:51 de 21/03/2025, Henrik Bengtsson escreveu:
What's going on here?

$ R --vanilla --quiet
plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
Warning messages:
1: "foo" is not a graphical parameter
2: "foo" is not a graphical parameter

Note how the warnings are revived in that second "NULL" call.  I can
reproduce this in R 4.4.3 and R-devel (2025-03-19 r88003). This might
be specific to "graphical parameter" warnings, because it won't happen
with, say, suppressWarnings({ log(-1) }).

It also doesn't appear if I call split up the first call into to
different REPL calls;

$ R --vanilla --quiet
plot.new()
suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL

/Henrik

PS. I thought I had sent this many months ago, but I just now found
this message in my draft folder, so now I'm not sure. Sorry, if this
is a duplicate.

______________________________________________
R-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
Hello,

I cannot reproduce this on Windows 11, R 4.4.3.
The command below is not exactly the same but I have tried it with the 
command in the OP and got the same result.

$ R --vanilla --quiet -f "rdevel.R" > ./Temp/rdevel.txt
 > plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
 > NULL
NULL
 > sessionInfo()
R version 4.4.3 (2025-02-28 ucrt)
Platform: x86_64-w64-mingw32/x64
Running under: Windows 11 x64 (build 22631)

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

time zone: Europe/Lisbon
tzcode source: internal

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

loaded via a namespace (and not attached):
[1] compiler_4.4.3
 >

Hope this helps,

Rui Barradas
Este e-mail foi analisado pelo software antiv?rus AVG para verificar a presen?a de v?rus.
www.avg.com
Warnings are not "reviving themselves magically". Try resizing the
window a few times and hitting return in the REPL. That should give
you a hint on what is going on.

Best,

luke

What's going on here?

$ R --vanilla --quiet
plot.new(); suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL
Warning messages:
1: "foo" is not a graphical parameter
2: "foo" is not a graphical parameter

Note how the warnings are revived in that second "NULL" call.  I can
reproduce this in R 4.4.3 and R-devel (2025-03-19 r88003). This might
be specific to "graphical parameter" warnings, because it won't happen
with, say, suppressWarnings({ log(-1) }).

It also doesn't appear if I call split up the first call into to
different REPL calls;

$ R --vanilla --quiet
plot.new()
suppressWarnings({ points(0, 0, foo = TRUE) })
NULL
NULL

/Henrik

PS. I thought I had sent this many months ago, but I just now found
this message in my draft folder, so now I'm not sure. Sorry, if this
is a duplicate.

______________________________________________
R-devel at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel

Luke Tierney
Ralph E. Wareham Professor of Mathematical Sciences
University of Iowa                  Phone:             319-335-3386
Department of Statistics and        Fax:               319-335-3017
    Actuarial Science
241 Schaeffer Hall                  email:   luke-tierney at uiowa.edu
Iowa City, IA 52242                 WWW:  http://www.stat.uiowa.edu/