Re: [R] Unexpected/undocumented behavior of 'within': dropping variable names that start with '.'

2015-09-23 Thread Martin Maechler 
> Hadley Wickham 
> on Sun, 20 Sep 2015 14:23:43 -0400 writes:

> The problem is that within.data.frame calls as.list.environment with
> the default value of all.names = FALSE. I doubt this is a deliberate
> feature, and is more likely to be a minor oversight.

Indeed;
Thank you, Hadley (and Brian)!

It is fixed now in R-devel   and will be ported to R-patched
probably tomorrow.

Martin

> Hadley

> On Sun, Sep 20, 2015 at 11:49 AM, Brian  wrote:
>> Dear List,
>> 
>> Somewhere I missed something, and now I'm really missing something!
>> 
>>> d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), dummy = c(1, 2, 3), a =
>> c(1, 2, 3), b = c(1, 2, 3) + 1)
>> > within(d.f, {d = a + b})
>> dummy a b d
>> 1 1 1 2 3
>> 2 2 2 3 5
>> 3 3 3 4 7
>> > d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), .dummy = c(1, 2, 3), a
>> = c(1, 2, 3), b = c(1, 2, 3) + 1)
>> > within(d.f, {d = a + b})
>> a b d
>> 1 1 2 3
>> 2 2 3 5
>> 3 3 4 7
>> 
>> Could somebody please explain to me why this does this? I think could be
>> considered a feature (for lots of calculations within a data frame you
>> don't have to remove all extra variables at the end).  I just wish it
>> was documented.
>> 
>> Cheers,
>> Brian
>> 
>> 
>> sessionInfo()
>> R version 3.1.0 (2014-04-10)
>> 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_MESSAGES=en_US.UTF-8
>> [7] LC_PAPER=en_US.UTF-8   LC_NAME=C
>> [9] LC_ADDRESS=C   LC_TELEPHONE=C
>> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>> 
>> attached base packages:
>> [1] splines   grid  stats graphics  grDevices utils datasets
>> [8] methods   base
>> 
>> other attached packages:
>> [1] scales_0.2.4   plyr_1.8.3 reshape2_1.4
>> ccchDataProc_0.7
>> [5] ccchTools_0.6  xtable_1.7-4   tables_0.7.79  Hmisc_3.14-5
>> [9] Formula_1.1-2  survival_2.37-7ggplot2_1.0.1
>> IDPmisc_1.1.17
>> [13] lattice_0.20-29myRplots_1.1   myRtools_1.2   
meteoconv_0.1
>> [17] pixmap_0.4-11  RColorBrewer_1.0-5 maptools_0.8-30sp_1.1-1
>> [21] mapdata_2.2-3  mapproj_1.2-2  maps_2.3-9 
chron_2.3-45
>> [25] MASS_7.3-35
>> 
>> loaded via a namespace (and not attached):
>> [1] acepack_1.3-3.3 cluster_1.15.2  colorspace_1.2-4
>> [4] compiler_3.1.0  data.table_1.9.4digest_0.6.4
>> [7] foreign_0.8-61  gtable_0.1.2labeling_0.3
>> [10] latticeExtra_0.6-26 munsell_0.4.2   nnet_7.3-8
>> [13] proto_0.3-10Rcpp_0.12.0 rpart_4.1-8
>> [16] stringr_0.6.2   tools_3.1.0
>> > within
>> function (data, expr, ...)
>> UseMethod("within")
>> 
>> 
>> 
>> __
>> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.



> -- 
> http://had.co.nz/

> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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[R] Unexpected/undocumented behavior of 'within': dropping variable names that start with '.'

2015-09-20 Thread Brian 
Dear List,

Somewhere I missed something, and now I'm really missing something!
 
> d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), dummy = c(1, 2, 3), a =
c(1, 2, 3), b = c(1, 2, 3) + 1)
 > within(d.f, {d = a + b})
   dummy a b d
 1 1 1 2 3
 2 2 2 3 5
 3 3 3 4 7
 > d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), .dummy = c(1, 2, 3), a
= c(1, 2, 3), b = c(1, 2, 3) + 1)
 > within(d.f, {d = a + b})
   a b d
 1 1 2 3
 2 2 3 5
 3 3 4 7

Could somebody please explain to me why this does this? I think could be
considered a feature (for lots of calculations within a data frame you
don't have to remove all extra variables at the end).  I just wish it
was documented.

Cheers,
Brian


sessionInfo()
 R version 3.1.0 (2014-04-10)
 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_MESSAGES=en_US.UTF-8
  [7] LC_PAPER=en_US.UTF-8   LC_NAME=C
  [9] LC_ADDRESS=C   LC_TELEPHONE=C
 [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C

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

 other attached packages:
  [1] scales_0.2.4   plyr_1.8.3 reshape2_1.4  
ccchDataProc_0.7
  [5] ccchTools_0.6  xtable_1.7-4   tables_0.7.79  Hmisc_3.14-5
  [9] Formula_1.1-2  survival_2.37-7ggplot2_1.0.1 
IDPmisc_1.1.17
 [13] lattice_0.20-29myRplots_1.1   myRtools_1.2   meteoconv_0.1
 [17] pixmap_0.4-11  RColorBrewer_1.0-5 maptools_0.8-30sp_1.1-1
 [21] mapdata_2.2-3  mapproj_1.2-2  maps_2.3-9 chron_2.3-45
 [25] MASS_7.3-35

 loaded via a namespace (and not attached):
  [1] acepack_1.3-3.3 cluster_1.15.2  colorspace_1.2-4
  [4] compiler_3.1.0  data.table_1.9.4digest_0.6.4
  [7] foreign_0.8-61  gtable_0.1.2labeling_0.3
 [10] latticeExtra_0.6-26 munsell_0.4.2   nnet_7.3-8
 [13] proto_0.3-10Rcpp_0.12.0 rpart_4.1-8
 [16] stringr_0.6.2   tools_3.1.0
 > within
 function (data, expr, ...)
 UseMethod("within")
 
 

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

Re: [R] Unexpected/undocumented behavior of 'within': dropping variable names that start with '.'

2015-09-20 Thread Hadley Wickham 
The problem is that within.data.frame calls as.list.environment with
the default value of all.names = FALSE. I doubt this is a deliberate
feature, and is more likely to be a minor oversight.

Hadley

On Sun, Sep 20, 2015 at 11:49 AM, Brian  wrote:
> Dear List,
>
> Somewhere I missed something, and now I'm really missing something!
>
>> d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), dummy = c(1, 2, 3), a =
> c(1, 2, 3), b = c(1, 2, 3) + 1)
>  > within(d.f, {d = a + b})
>dummy a b d
>  1 1 1 2 3
>  2 2 2 3 5
>  3 3 3 4 7
>  > d.f <- data.frame(.id = c(TRUE, FALSE, TRUE), .dummy = c(1, 2, 3), a
> = c(1, 2, 3), b = c(1, 2, 3) + 1)
>  > within(d.f, {d = a + b})
>a b d
>  1 1 2 3
>  2 2 3 5
>  3 3 4 7
>
> Could somebody please explain to me why this does this? I think could be
> considered a feature (for lots of calculations within a data frame you
> don't have to remove all extra variables at the end).  I just wish it
> was documented.
>
> Cheers,
> Brian
>
>
> sessionInfo()
>  R version 3.1.0 (2014-04-10)
>  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_MESSAGES=en_US.UTF-8
>   [7] LC_PAPER=en_US.UTF-8   LC_NAME=C
>   [9] LC_ADDRESS=C   LC_TELEPHONE=C
>  [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>
>  attached base packages:
>  [1] splines   grid  stats graphics  grDevices utils datasets
>  [8] methods   base
>
>  other attached packages:
>   [1] scales_0.2.4   plyr_1.8.3 reshape2_1.4
> ccchDataProc_0.7
>   [5] ccchTools_0.6  xtable_1.7-4   tables_0.7.79  Hmisc_3.14-5
>   [9] Formula_1.1-2  survival_2.37-7ggplot2_1.0.1
> IDPmisc_1.1.17
>  [13] lattice_0.20-29myRplots_1.1   myRtools_1.2   meteoconv_0.1
>  [17] pixmap_0.4-11  RColorBrewer_1.0-5 maptools_0.8-30sp_1.1-1
>  [21] mapdata_2.2-3  mapproj_1.2-2  maps_2.3-9 chron_2.3-45
>  [25] MASS_7.3-35
>
>  loaded via a namespace (and not attached):
>   [1] acepack_1.3-3.3 cluster_1.15.2  colorspace_1.2-4
>   [4] compiler_3.1.0  data.table_1.9.4digest_0.6.4
>   [7] foreign_0.8-61  gtable_0.1.2labeling_0.3
>  [10] latticeExtra_0.6-26 munsell_0.4.2   nnet_7.3-8
>  [13] proto_0.3-10Rcpp_0.12.0 rpart_4.1-8
>  [16] stringr_0.6.2   tools_3.1.0
>  > within
>  function (data, expr, ...)
>  UseMethod("within")
>  
>  
>
> __
> R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.



-- 
http://had.co.nz/

__
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.