thr3ads.net - R devel - [Rd] Strange behavior when using progress bar (Fwd: Re: [R] The code itself disappears after starting to execute the for loop) [Dec 2016]

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Martin Maechler

2016-Dec-07 10:58 UTC

[Rd] Strange behavior when using progress bar (Fwd: Re: [R] The code itself disappears after starting to execute the for loop)

>>>>> Jon Skoien <jon.skoien at jrc.ec.europa.eu>
>>>>>     on Wed, 7 Dec 2016 11:04:04 +0100 writes:
    > I would like to ask once more if this is reproducible also for others? 
    > If yes, should I submit it as a bug-report?

    > Best,
    > Jon

Please  Windows users .. this is possibly only for you!

Note that I do *not* see problems on Linux (in ESS; did not try RStudio).

Please also indicate in which form you are running R.
Here it does depend if this is inside RStudio, ESS, the "Windows
GUI", the "Windows terminal", ...

Martin Maechler,
ETH Zurich


    > On 11/28/2016 11:26 AM, Jon Skoien wrote:
    >> I first answered to the email below in r-help, but as I did not see
    >> any response, and it looks like a bug/unwanted behavior, I am also 
    >> posting here. I have observed this in RGui, whereas it seems not to
    >> happen in RStudio.
    >> 
    >> Similar to OP, I sometimes have a problem with functions using the 
    >> progress bar. Frequently, the console is cleared after x iterations
    >> when the progress bar is called in a function which is wrapped in a
    >> loop. In the example below, this happened for me every ~44th 
    >> iteration. Interestingly, it seems that reduction of the sleep
times
    >> in this function increases the number of iterations before
clearing.
    >> In my real application, where the progress bar is used in a much 
    >> slower function, the console is cleared every 2-3 iteration, which 
    >> means that I cannot scroll back to check the output.

 testit <- function(x = sort(runif(20)), ...) {
   pb <- txtProgressBar(...)
   for(i in c(0, x, 1)) {Sys.sleep(0.2); setTxtProgressBar(pb, i)}
   Sys.sleep(1)
   close(pb)
 }
 
 it <- 0
 while (TRUE) {testit(style = 3); it <- it + 1; print(paste("done",
it))}

    >> Is this only a problem for a few, or is it reproducible? Any hints
to
    >> what the problem could be, or if it can be fixed? I have seen this
in
    >> some versions of R, and could also reproduce in 3.3.2.

"some versions of R" ... all on Windows ?

    >> 
    >> Best wishes,
    >> Jon
    >> 
    >> R version 3.3.2 (2016-10-31)
    >> Platform: x86_64-w64-mingw32/x64 (64-bit)
    >> Running under: Windows 8.1 x64 (build 9600)
    >> 
    >> locale:
    >> [1] LC_COLLATE=English_United States.1252
    >> [2] LC_CTYPE=English_United States.1252
    >> [3] LC_MONETARY=English_United States.1252
    >> [4] LC_NUMERIC=C
    >> [5] LC_TIME=English_United States.1252
    >> 
    >> attached base packages:
    >> [1] stats     graphics  grDevices utils     datasets  methods base

[.....................]

    > Jon Olav Sk?ien
    > Joint Research Centre - European Commission
    > Institute for Space, Security & Migration
    > Disaster Risk Management Unit

    > Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY

    > jon.skoien at jrc.ec.europa.eu
    > Tel:  +39 0332 789205

Fox, John

2016-Dec-07 13:59 UTC

head link

[Rd] Strange behavior when using progress bar (Fwd: Re: [R] The code itself disappears after starting to execute the for loop)

Dear Martin and Jon,

I can reproduce this problem in the Windows GUI, where I observed it using
Jon's program after 75 iterations. I didn't observe the problem in a
Windows terminal or under RStudio, letting the program run for more than 200
iterations in each case.

My system and session info:

------------- snip ---------
> Sys.info()         sysname          release          version         nodename 
       "Windows"         "10 x64"    "build 14393"
"JOHN-CARBON-X1"
         machine            login             user   effective_user 
        "x86-64"       "John Fox"       "John Fox"
"John Fox"
> sessionInfo()R version 3.3.2 (2016-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 10 x64 (build 14393)

locale:
[1] LC_COLLATE=English_Canada.1252  LC_CTYPE=English_Canada.1252   
[3] LC_MONETARY=English_Canada.1252 LC_NUMERIC=C                   
[5] LC_TIME=English_Canada.1252    

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

------------- snip ---------

I hope this helps,
 John

-----------------------------
John Fox, Professor
McMaster University
Hamilton, Ontario
Canada L8S 4M4
Web: socserv.mcmaster.ca/jfox

> -----Original Message-----
> From: R-devel [mailto:r-devel-bounces at r-project.org] On Behalf Of Martin
> Maechler
> Sent: December 7, 2016 5:58 AM
> To: Jon Skoien <jon.skoien at jrc.ec.europa.eu>
> Cc: r-devel at r-project.org
> Subject: Re: [Rd] Strange behavior when using progress bar (Fwd: Re: [R]
The
> code itself disappears after starting to execute the for loop)
> 
> >>>>> Jon Skoien <jon.skoien at jrc.ec.europa.eu>
> >>>>>     on Wed, 7 Dec 2016 11:04:04 +0100 writes:
> 
>     > I would like to ask once more if this is reproducible also for
others?
>     > If yes, should I submit it as a bug-report?
> 
>     > Best,
>     > Jon
> 
> Please  Windows users .. this is possibly only for you!
> 
> Note that I do *not* see problems on Linux (in ESS; did not try RStudio).
> 
> Please also indicate in which form you are running R.
> Here it does depend if this is inside RStudio, ESS, the "Windows
GUI", the
> "Windows terminal", ...
> 
> Martin Maechler,
> ETH Zurich
> 
> 
>     > On 11/28/2016 11:26 AM, Jon Skoien wrote:
>     >> I first answered to the email below in r-help, but as I did
not see
>     >> any response, and it looks like a bug/unwanted behavior, I am
also
>     >> posting here. I have observed this in RGui, whereas it seems
not to
>     >> happen in RStudio.
>     >>
>     >> Similar to OP, I sometimes have a problem with functions using
the
>     >> progress bar. Frequently, the console is cleared after x
iterations
>     >> when the progress bar is called in a function which is wrapped
in a
>     >> loop. In the example below, this happened for me every ~44th
>     >> iteration. Interestingly, it seems that reduction of the sleep
times
>     >> in this function increases the number of iterations before
clearing.
>     >> In my real application, where the progress bar is used in a
much
>     >> slower function, the console is cleared every 2-3 iteration,
which
>     >> means that I cannot scroll back to check the output.
> 
>  testit <- function(x = sort(runif(20)), ...) {
>    pb <- txtProgressBar(...)
>    for(i in c(0, x, 1)) {Sys.sleep(0.2); setTxtProgressBar(pb, i)}
>    Sys.sleep(1)
>    close(pb)
>  }
> 
>  it <- 0
>  while (TRUE) {testit(style = 3); it <- it + 1;
print(paste("done", it))}
> 
>     >> Is this only a problem for a few, or is it reproducible? Any
hints to
>     >> what the problem could be, or if it can be fixed? I have seen
this in
>     >> some versions of R, and could also reproduce in 3.3.2.
> 
> "some versions of R" ... all on Windows ?
> 
>     >>
>     >> Best wishes,
>     >> Jon
>     >>
>     >> R version 3.3.2 (2016-10-31)
>     >> Platform: x86_64-w64-mingw32/x64 (64-bit)
>     >> Running under: Windows 8.1 x64 (build 9600)
>     >>
>     >> locale:
>     >> [1] LC_COLLATE=English_United States.1252
>     >> [2] LC_CTYPE=English_United States.1252
>     >> [3] LC_MONETARY=English_United States.1252
>     >> [4] LC_NUMERIC=C
>     >> [5] LC_TIME=English_United States.1252
>     >>
>     >> attached base packages:
>     >> [1] stats     graphics  grDevices utils     datasets  methods
base
> 
> [.....................]
> 
>     > Jon Olav Sk?ien
>     > Joint Research Centre - European Commission
>     > Institute for Space, Security & Migration
>     > Disaster Risk Management Unit
> 
>     > Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY
> 
>     > jon.skoien at jrc.ec.europa.eu
>     > Tel:  +39 0332 789205
> 
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

Jon Skoien

2016-Dec-07 14:12 UTC

head link

[Rd] Strange behavior when using progress bar (Fwd: Re: [R] The code itself disappears after starting to execute the for loop)

On 12/7/2016 11:58 AM, Martin Maechler wrote:>>>>>> Jon Skoien <jon.skoien at jrc.ec.europa.eu>
>>>>>>      on Wed, 7 Dec 2016 11:04:04 +0100 writes:
>
>
>      >> Is this only a problem for a few, or is it reproducible? Any
hints to
>      >> what the problem could be, or if it can be fixed? I have seen
this in
>      >> some versions of R, and could also reproduce in 3.3.2.
>
> "some versions of R" ... all on Windows ?
Yes, I should have clarified, several versions of R, all running on the 
same Windows 8.1 computer.

Jon>
>      >>
>      >> Best wishes,
>      >> Jon
>      >>
>      >> R version 3.3.2 (2016-10-31)
>      >> Platform: x86_64-w64-mingw32/x64 (64-bit)
>      >> Running under: Windows 8.1 x64 (build 9600)
>      >>
>      >> locale:
>      >> [1] LC_COLLATE=English_United States.1252
>      >> [2] LC_CTYPE=English_United States.1252
>      >> [3] LC_MONETARY=English_United States.1252
>      >> [4] LC_NUMERIC=C
>      >> [5] LC_TIME=English_United States.1252
>      >>
>      >> attached base packages:
>      >> [1] stats     graphics  grDevices utils     datasets  methods
base
>
> [.....................]
>
>      > Jon Olav Sk?ien
>      > Joint Research Centre - European Commission
>      > Institute for Space, Security & Migration
>      > Disaster Risk Management Unit
>
>      > Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY
>
>      > jon.skoien at jrc.ec.europa.eu
>      > Tel:  +39 0332 789205
>
-- 
Jon Olav Sk?ien
Joint Research Centre - European Commission
Institute for Space, Security & Migration
Disaster Risk Management Unit

Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY

jon.skoien at jrc.ec.europa.eu
Tel:  +39 0332 789205

Disclaimer: Views expressed in this email are those of the individual and do not
necessarily represent official views of the European Commission.

Jon Skoien

2016-Dec-12 16:31 UTC

head link

[Rd] Strange behavior when using progress bar (Fwd: Re: [R] The code itself disappears after starting to execute the for loop)

Thanks John,

As the problem can be reproduced, I would like to submit this as a bug 
report. But I think someone will have to add me to Bugzilla first.
Given the few responses, I am not expecting that this will get a high 
priority though...

Jon

On 12/7/2016 2:59 PM, Fox, John wrote:> Dear Martin and Jon,
>
> I can reproduce this problem in the Windows GUI, where I observed it using
Jon's program after 75 iterations. I didn't observe the problem in a
Windows terminal or under RStudio, letting the program run for more than 200
iterations in each case.
>
> My system and session info:
>
> ------------- snip ---------
>
>> Sys.info()
>           sysname          release          version         nodename
>         "Windows"         "10 x64"    "build
14393" "JOHN-CARBON-X1"
>           machine            login             user   effective_user
>          "x86-64"       "John Fox"       "John
Fox"       "John Fox"
>
>> sessionInfo()
> R version 3.3.2 (2016-10-31)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 10 x64 (build 14393)
>
> locale:
> [1] LC_COLLATE=English_Canada.1252  LC_CTYPE=English_Canada.1252
> [3] LC_MONETARY=English_Canada.1252 LC_NUMERIC=C
> [5] LC_TIME=English_Canada.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> ------------- snip ---------
>
> I hope this helps,
>   John
>
> -----------------------------
> John Fox, Professor
> McMaster University
> Hamilton, Ontario
> Canada L8S 4M4
> Web: socserv.mcmaster.ca/jfox
>
>
>> -----Original Message-----
>> From: R-devel [mailto:r-devel-bounces at r-project.org] On Behalf Of
Martin
>> Maechler
>> Sent: December 7, 2016 5:58 AM
>> To: Jon Skoien <jon.skoien at jrc.ec.europa.eu>
>> Cc: r-devel at r-project.org
>> Subject: Re: [Rd] Strange behavior when using progress bar (Fwd: Re:
[R] The
>> code itself disappears after starting to execute the for loop)
>>
>>>>>>> Jon Skoien <jon.skoien at jrc.ec.europa.eu>
>>>>>>>      on Wed, 7 Dec 2016 11:04:04 +0100 writes:
>>      > I would like to ask once more if this is reproducible also
for others?
>>      > If yes, should I submit it as a bug-report?
>>
>>      > Best,
>>      > Jon
>>
>> Please  Windows users .. this is possibly only for you!
>>
>> Note that I do *not* see problems on Linux (in ESS; did not try
RStudio).
>>
>> Please also indicate in which form you are running R.
>> Here it does depend if this is inside RStudio, ESS, the "Windows
GUI", the
>> "Windows terminal", ...
>>
>> Martin Maechler,
>> ETH Zurich
>>
>>
>>      > On 11/28/2016 11:26 AM, Jon Skoien wrote:
>>      >> I first answered to the email below in r-help, but as I
did not see
>>      >> any response, and it looks like a bug/unwanted behavior,
I am also
>>      >> posting here. I have observed this in RGui, whereas it
seems not to
>>      >> happen in RStudio.
>>      >>
>>      >> Similar to OP, I sometimes have a problem with functions
using the
>>      >> progress bar. Frequently, the console is cleared after x
iterations
>>      >> when the progress bar is called in a function which is
wrapped in a
>>      >> loop. In the example below, this happened for me every
~44th
>>      >> iteration. Interestingly, it seems that reduction of the
sleep times
>>      >> in this function increases the number of iterations
before clearing.
>>      >> In my real application, where the progress bar is used in
a much
>>      >> slower function, the console is cleared every 2-3
iteration, which
>>      >> means that I cannot scroll back to check the output.
>>
>>   testit <- function(x = sort(runif(20)), ...) {
>>     pb <- txtProgressBar(...)
>>     for(i in c(0, x, 1)) {Sys.sleep(0.2); setTxtProgressBar(pb, i)}
>>     Sys.sleep(1)
>>     close(pb)
>>   }
>>
>>   it <- 0
>>   while (TRUE) {testit(style = 3); it <- it + 1;
print(paste("done", it))}
>>
>>      >> Is this only a problem for a few, or is it reproducible?
Any hints to
>>      >> what the problem could be, or if it can be fixed? I have
seen this in
>>      >> some versions of R, and could also reproduce in 3.3.2.
>>
>> "some versions of R" ... all on Windows ?
>>
>>      >>
>>      >> Best wishes,
>>      >> Jon
>>      >>
>>      >> R version 3.3.2 (2016-10-31)
>>      >> Platform: x86_64-w64-mingw32/x64 (64-bit)
>>      >> Running under: Windows 8.1 x64 (build 9600)
>>      >>
>>      >> locale:
>>      >> [1] LC_COLLATE=English_United States.1252
>>      >> [2] LC_CTYPE=English_United States.1252
>>      >> [3] LC_MONETARY=English_United States.1252
>>      >> [4] LC_NUMERIC=C
>>      >> [5] LC_TIME=English_United States.1252
>>      >>
>>      >> attached base packages:
>>      >> [1] stats     graphics  grDevices utils     datasets 
methods base
>>
>> [.....................]
>>
>>      > Jon Olav Sk?ien
>>      > Joint Research Centre - European Commission
>>      > Institute for Space, Security & Migration
>>      > Disaster Risk Management Unit
>>
>>      > Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY
>>
>>      > jon.skoien at jrc.ec.europa.eu
>>      > Tel:  +39 0332 789205
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
-- 
Jon Olav Sk?ien
Joint Research Centre - European Commission
Institute for Space, Security & Migration
Disaster Risk Management Unit

Via E. Fermi 2749, TP 122,  I-21027 Ispra (VA), ITALY

jon.skoien at jrc.ec.europa.eu
Tel:  +39 0332 789205

Disclaimer: Views expressed in this email are those of the individual and do not
necessarily represent official views of the European Commission.

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