R help - Oct 2022 - cannot print a list with cat

I have a "list" containing four elements, as shown below:

 > t(mycontrol)

 ???? tol reltol steptol gradtol
[1,] 0?? 0????? 1e-08?? 1e-12

Printing this in a main program causes no problem (as shown above).
But, using the command t(mycontrol) the line gets ignored. Any idea? Thanks.
Steven Yen

? Mon, 24 Oct 2022 20:39:33 +0800
"Steven T. Yen" <styen at ntu.edu.tw> ?????:
> Printing this in a main program causes no problem (as shown above).
> But, using the command t(mycontrol) the line gets ignored.
t() doesn't print, it returns a value. In R, there's auto-printing in
the toplevel context (see ?withAutoprint), but not when you move away
from the interactive prompt. I think that it should be possible to use
an explicit print(t(mycontrol)) to get the behaviour you desire.

-- 
Best regards,
Ivan

On 10/24/22 7:39 AM, Steven T. Yen wrote:
> I have a "list" containing four elements, as shown below:
> 
>  > t(mycontrol)
> 
>  ???? tol reltol steptol gradtol
> [1,] 0?? 0????? 1e-08?? 1e-12
> 
> Printing this in a main program causes no problem (as shown above).
> But, using the command t(mycontrol) the line gets ignored. Any idea? 

I'm confused.  I get:


 > (mycontrol <- list(tol=0, reltol=0,
+         steptol=1e-8, gradtol=1e-12))
$tol
[1] 0

$reltol
[1] 0

$steptol
[1] 1e-08

$gradtol
[1] 1e-12

 >
 > t(mycontrol)
      tol reltol steptol gradtol
[1,] 0   0      1e-08   1e-12


	  I don't know what you mean by "main program" vs. "the
command
t(mycontrol)".


	  ???
	  Spencer Graves


 > sessionInfo()
R version 4.2.1 (2022-06-23)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Big Sur 11.7

Matrix products: default
LAPACK: 
/Library/Frameworks/R.framework/Versions/4.2/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

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

loaded via a namespace (and not attached):
[1] compiler_4.2.1 tools_4.2.1

> Thanks.
> Steven Yen
> 
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