Over the years, this has been useful to me (not just in R) for many
nonlinear optimization tasks. The alternatives often clutter the screen.
> On 13-11-06 06:00 AM, r-devel-requ...@r-project.org wrote:
> People do sometimes use this pattern for displaying progress (e.g. iteration
> counts).
>>
On 07 Nov 2013, at 10:13 , Barry Rowlingson
wrote:
> On Thu, Nov 7, 2013 at 8:28 AM, Jari Oksanen wrote:
>>
>> On 07/11/2013, at 09:35 AM, Renaud Gaujoux wrote:
>>
>>> I agree that the handling of \b is not that strange, once one agrees
>>> on what \b actually means, i.e. "go back one charac
On Thu, Nov 7, 2013 at 8:28 AM, Jari Oksanen wrote:
>
> On 07/11/2013, at 09:35 AM, Renaud Gaujoux wrote:
>
>> I agree that the handling of \b is not that strange, once one agrees
>> on what \b actually means, i.e. "go back one character" and not
>> "delete previous character".
It means, to parap
On 07/11/2013, at 09:35 AM, Renaud Gaujoux wrote:
> I agree that the handling of \b is not that strange, once one agrees
> on what \b actually means, i.e. "go back one character" and not
> "delete previous character".
> The fact that R GUI on Mac and Windows interprets/renders it
> differently sh
I agree that the handling of \b is not that strange, once one agrees
on what \b actually means, i.e. "go back one character" and not
"delete previous character".
The fact that R GUI on Mac and Windows interprets/renders it
differently shows that normality and strangeness is quite relative
though.
On Nov 6, 2013, at 3:47 AM, Renaud Gaujoux
wrote:
>> Anyway,
>> thanks for all the experiments, and (to Renaud) support.rstudio.org is
>> the place to report such problems.
>>
>
> Funny how the post diverged to an RStudio-related issue.
> Anyway, I posted a link to this post at support.rstudi
> Anyway,
> thanks for all the experiments, and (to Renaud) support.rstudio.org is
> the place to report such problems.
>
Funny how the post diverged to an RStudio-related issue.
Anyway, I posted a link to this post at support.rstudio.org:
http://support.rstudio.org/help/discussions/problems/9242-
Yes, that indeed sounds like a problem, but example(txtProgressBar),
which is based on \r, works well in the RStudio console. Anyway,
thanks for all the experiments, and (to Renaud) support.rstudio.org is
the place to report such problems.
Regards,
Yihui
--
Yihui Xie
Web: http://yihui.name
Depart
On 05 Nov 2013, at 17:53 , Martin Maechler wrote:
>> "PhGr" == Philippe Grosjean
>>on Tue, 5 Nov 2013 17:02:19 +0100 writes:
>
>PhGr> On 05 Nov 2013, at 14:22, Martin Maechler
>PhGr> wrote:
>
Kenn Konstabel on Tue, 5 Nov
2013 13:25:20 +0200 writes:
>>>
> "PhGr" == Philippe Grosjean
> on Tue, 5 Nov 2013 17:02:19 +0100 writes:
PhGr> On 05 Nov 2013, at 14:22, Martin Maechler
PhGr> wrote:
>>> Kenn Konstabel on Tue, 5 Nov
>>> 2013 13:25:20 +0200 writes:
>>
>>> I just tried it on ubuntu but within RStud
On 05 Nov 2013, at 14:22, Martin Maechler wrote:
>> Kenn Konstabel
>>on Tue, 5 Nov 2013 13:25:20 +0200 writes:
>
>> I just tried it on ubuntu but within RStudio:
>>> cat("abc\b")
>> ab
>>> cat("abc\b\n")
>> ab
>>> sessionInfo()
>
> which --- as you allude to below --- shows that
> Brian G Peterson
> on Tue, 5 Nov 2013 07:30:14 -0600 writes:
> On 11/05/2013 07:22 AM, Martin Maechler wrote:
>> which --- as you allude to below --- shows that RStudio
>> has changed R in so far that it adds a '\n' even when R,
>> i.e. cat() does not.
>>
>
Thanks for the clarification. This appears to be a terminal behaviour issue.
It is user lack-of-understanding: there is no error here.
>
I believe lack of understanding is probably amongst the top reasons why
users post to the list and get happily enlightened.
I don't think I said there was an er
On 11/05/2013 07:22 AM, Martin Maechler wrote:
which --- as you allude to below --- shows that RStudio has changed R
in so far that it adds a '\n' even when R, i.e. cat() does not.
I can understand that the RStudio programmers want to protect
their users (*) from getting funny looking outpu
> Kenn Konstabel
> on Tue, 5 Nov 2013 13:25:20 +0200 writes:
> I just tried it on ubuntu but within RStudio:
>> cat("abc\b")
> ab
>> cat("abc\b\n")
> ab
>> sessionInfo()
which --- as you allude to below --- shows that RStudio has changed R
in so far that it
It is user lack-of-understanding: there is no error here. R outputs
a
b
c
backspace
newline
How the terminal displays that is up to the terminal, which was
unstated. (Capture the output and look at it in a hex editor.)
For
a
b
c
backspace
a normal terminal will output the prompt and overw
I just tried it on ubuntu but within RStudio:
> cat("abc\b")
ab
> cat("abc\b\n")
ab
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=C
LC_COLLATE=C
[5] LC_MONETARY=CLC_MESSAGES=CLC_P
Maybe it's a Linux problem:
> cat("abc\b")
ab> cat("abc\b\n")
abc
> sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C
[3] LC_TIME=en_US.UTF-8LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8LC_MESS
Hello,
Can't reproduce it, there must be something with your console. I get
> cat("abc\b")
ab> cat("abc\b\n")
ab
>
Hope this helps,
Rui Barradas
Em 01-11-2013 11:06, Renaud Gaujoux escreveu:
Hi,
when mixing newline and backspace characters I get the following output
(see below). In the sec
I don't know what the normal behaviour is. I was expecting the remaining of
the line to be wiped out, but you must be right: the character 'c' is
already printed, the cursor moves back one position and go to the next
line, leaving the 'c' in place.
But what about this one:
> cat("abc\b\b\b")
> c
Hi,
when mixing newline and backspace characters I get the following output
(see below). In the second call, the backspace character is simply not
applied. Is this normal behaviour?
Thank you.
> cat("abc\b")
ab> cat("abc\b\n")
abc
>
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