Are R packages (and their dependencies) OS specific?

2018-07-02 20:47:52

On Mac OS X, loading data.table. did not require chron . On Windows, it was required.

Is there something wrong with either the Mac or the Windows version?

If not, how could I detect these OS specific differences prior to trying to load data.table (or similar)?

Output on MAC:

require(data.table, lib.loc='packrat/lib/x86_64-apple-darwin10.8.0/3.1.1') sessionInfo() R version 3.1.1 (2014-07-10) Platform: x86_64-apple-darwin10.8.0 (64-bit)

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
[7] base

other attached packages: [1] data.table_1.9.2

loaded via a namespace (and not attached): [1] plyr_1.8.1 Rcpp_0.11.3 reshape2_1.4 stringr_0.6.2 [5] tools_3.1.

Other files in the library folder:

list.dirs('packrat/lib/x86_64-apple-darwin10.8.0/3.1.1', full.names=FALSE, recursive=FALSE)
 [1] "colorspace"   "data.table"   "dichromat"    "digest"      
 [5] "ggplot2"      "gtable"       "labeling"     "manipulate"  
 [9] "MASS"         "munsell"      "packrat"      "plyr"        
[13] "proto"        "RColorBrewer" "Rcpp"         "reshape"     
[17] "reshape2"     "rstudio"      "scales"       "stringr"     
[21] "yaml"

Standard R library folder:

list.dirs('/Library/Frameworks/R.framework/Resources/library', full.names=FALSE, recursive=FALSE)
 [1] "base"      "compiler"  "datasets"  "graphics"  "grDevices"
 [6] "grid"      "lattice"   "MASS"      "Matrix"    "methods"  
[11] "nlme"      "parallel"  "splines"   "stats"     "stats4"   
[16] "tcltk"     "tools"     "utils"

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