Re: [Rd] uncompressed saves warning

2012-03-23 Thread Uwe Ligges



On 22.03.2012 13:43, Michael Friendly wrote:

On 3/21/2012 1:22 PM, Uwe Ligges wrote:

What is the equivalent R command to compress these files in my project
tree?



Michael,

if you use
R CMD build --resave-data
to build the tar archive, the versions therein are recompressed.

But AFAIK, in StatET, R CMD build builds a separate .tar.gz file under
c:/eclipse, and does not affect
the project directory where these files are stored and sync'd with R-Forge.


Otherwise, you can also open the files and resave them via save() and
appropriate arguments.

I exported the .rda files to c:/R/data and ran

  load(gfrance.rda)
  load(gfrance85.rda)
  save(gfrance, file=gfrance.RData, compress=xz)
Error in xzfile(file, wb, compression = 9) : cannot open the connection
In addition: Warning message:
In xzfile(file, wb, compression = 9) :
cannot initialize lzma encoder, error 5

Why doesn't this work?




Don't know, works for me with R-2.14.2 (at least with another object - I 
do noit have yours) but tested with R-2.14.2 and R-2.15.0 RC, I do not 
have an R-2.14.1 around any more.


Uwe



  save(gfrance, file=gfrance.RData, compress=TRUE)

The above works, but only compresses a 300K file to 299K


Or use resaveRdaFiles() in package tools to runn it on a whole folder
automatically.



  sessionInfo()
R version 2.14.1 (2011-12-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United
States.1252 LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C LC_TIME=English_United States.1252

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

other attached packages:
[1] p3d_0.02-4 mgcv_1.7-13 car_2.0-12 nnet_7.3-1 rgl_0.92.798 vcd_1.2-13
colorspace_1.1-1 MASS_7.3-17

loaded via a namespace (and not attached):
[1] lattice_0.20-6 Matrix_1.0-4 nlme_3.1-103 tools_2.14.1
 



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Re: [Rd] uncompressed saves warning

2012-03-22 Thread Michael Friendly

On 3/21/2012 1:22 PM, Uwe Ligges wrote:

What is the equivalent R command to compress these files in my project
tree?



Michael,

if you use
R CMD build --resave-data
to build the tar archive, the versions therein are recompressed.
But AFAIK, in StatET, R CMD build  builds a separate .tar.gz file under 
c:/eclipse, and does not affect

the project directory where these files are stored and sync'd with R-Forge.


Otherwise, you can also open the files and resave them via save() and 
appropriate arguments.

I exported the .rda files to c:/R/data and ran

 load(gfrance.rda)
 load(gfrance85.rda)
 save(gfrance, file=gfrance.RData, compress=xz)
Error in xzfile(file, wb, compression = 9) : cannot open the connection
In addition: Warning message:
In xzfile(file, wb, compression = 9) :
  cannot initialize lzma encoder, error 5

Why doesn't this work?

 save(gfrance, file=gfrance.RData, compress=TRUE)

The above works, but only compresses a 300K file to 299K


Or use  resaveRdaFiles() in package tools to runn it on a whole folder 
automatically.




 sessionInfo()
R version 2.14.1 (2011-12-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252  LC_CTYPE=English_United 
States.1252LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C   LC_TIME=English_United 
States.1252


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


other attached packages:
[1] p3d_0.02-4   mgcv_1.7-13  car_2.0-12   nnet_7.3-1   
rgl_0.92.798 vcd_1.2-13   colorspace_1.1-1 MASS_7.3-17


loaded via a namespace (and not attached):
[1] lattice_0.20-6 Matrix_1.0-4   nlme_3.1-103   tools_2.14.1


--
Michael Friendly Email: friendly AT yorku DOT ca
Professor, Psychology Dept.
York University  Voice: 416 736-5115 x66249 Fax: 416 736-5814
4700 Keele StreetWeb:   http://www.datavis.ca
Toronto, ONT  M3J 1P3 CANADA

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Re: [Rd] uncompressed saves warning

2012-03-21 Thread Uwe Ligges



On 21.03.2012 14:58, Michael Friendly wrote:

[Env: Windows XP Pro / R 2.14.1 / StatET / R-Forge]

A package of mine now generates a Warning under R 2.15.0 beta on CRAN
checks:

* checking data for ASCII and uncompressed saves ... WARNING

Note: significantly better compression could be obtained
by using R CMD build --resave-data
old_size new_size compress
gfrance.rda 300Kb 179Kb xz
gfrance85.rda 295Kb 176Kb xz

What is the equivalent R command to compress these files in my project
tree?



Michael,

if you use
R CMD build --resave-data
to build the tar archive, the versions therein are recompressed.

Otherwise, you can also open the files and resave them via save() and 
appropriate arguments.


Or use  resaveRdaFiles() in package tools to runn it on a whole folder 
automatically.


Best,
uwe

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