[R-SIG-Mac] Extra Returns Accumulate in Console When Recalling Comands via History

[Bryan Hanson]

Hi Rob… I’m not reading the history on startup.  But the “clean up history entries” box is not checked for me, I’m not sure if it ever was, nor am I clear as to what it does [… goes and does the expt …] yes, that’s the problem.  Thank you, I’ll cc the list.  Bryan

> On Jan 29, 2019, at 10:09 AM, Rob J. Goedman <goedman using icloud.com> wrote:
> 
> Bryan,
> 
> Could it be that your startup preferences have been changed, particularly the item 'Cleanup history entries’?
> 
> Rob J Goedman
> goedman using icloud.com <mailto:goedman using icloud.com>
> 
> <Screen Shot 2019-01-29 at 08.08.09.png>
> 
> 
>> On Jan 28, 2019, at 19:30, Bryan Hanson <hanson using depauw.edu <mailto:hanson using depauw.edu>> wrote:
>> 
>> I don’t think this has been reported previously.  I’m running R 3.6 updating every few weeks.  Recently (roughly last month), I’ve noticed that for each command that is issued, an extra return is added in the console if one uses the up arrow to retrieve a previously used command from the history.
>> 
>> To reproduce, give a command like
>> 
>> mean(rnorm(100))
>> 
>> then use the up arrow to re-run the command, and one gets an extra return in the console added for each re-running.  Simply writing a command, not using the history, doesn’t do this, so it looks like an extra return is being added when the  history is accessed.
>> 
>> https://imgur.com/a/it5e9Hy <https://imgur.com/a/it5e9Hy> <https://imgur.com/a/it5e9Hy <https://imgur.com/a/it5e9Hy>> for a screenshot.
>> 
>> Thanks, Bryan
>> 
>>> sessionInfo()
>> R Under development (unstable) (2019-01-22 r76000)
>> Platform: x86_64-apple-darwin15.6.0 (64-bit)
>> Running under: macOS Mojave 10.14.2
>> 
>> Matrix products: default
>> BLAS: /Library/Frameworks/R.framework/Versions/3.6/Resources/lib/libRblas.0.dylib
>> LAPACK: /Library/Frameworks/R.framework/Versions/3.6/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  methods   base     
>> 
>> loaded via a namespace (and not attached):
>> [1] compiler_3.6.0
>> 
>> 
>> 
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>> 
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