[Rscript] difficulty passing named arguments from commandline
Hi Tom, Using the script below I had no trouble. Here's an example Minke:R ben$ Rscript --no-init-file ./argCatcher.rs ./the=trouble .with=./args is=the.y argue ./the=trouble .with=./args is=the.y argue # script starts here # argumentCatcher.rs args = commandArgs(trailing = TRUE) cat(args, sep = "\n") q(runLast = FALSE, status = 0, save = "no") # script ends here What does your R --version report? Minke:R ben$ R --version R version 2.15.0 (2012-03-30) Copyright (C) 2012 The R Foundation for Statistical Computing ISBN 3-900051-07-0 Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit) Cheers, Ben
On Sep 6, 2012, at 7:27 PM, Tom Roche wrote:
Wanting a commandline solution (for a problem detailed @ http://mailman.unidata.ucar.edu/mailing_lists/archives/netcdfgroup/2012/msg00279.html ) I turned to Rscript, and whacked out the q'n'd https://github.com/TomRoche/GEIA_to_netCDF/blob/master/netCDF.stats.to.stdout.r However it wasn't as quick as hoped, because I spent quite a bit of time figuring out how to pass the arguments. This works (note the quoting): $ Rscript ./netCDF.stats.to.stdout.r 'netcdf.fp="./GEIA_N2O_oceanic.nc"' 'var.name="emi_n2o"'
For ./GEIA_N2O_oceanic.nc var=emi_n2o cells=64800 obs=36143 min=5.96e-08 max=1.17e+03 mean=99.5 med=67.7
but this fails roche at amad1:/project/inf14w/roche/GEIA_to_netCDF $ Rscript ./netCDF.stats.to.stdout.r 'netcdf.fp=./GEIA_N2O_oceanic.nc' 'var.name=emi_n2o'
Error in eval(expr, envir, enclos) : object '.' not found Calls: eval -> eval Execution halted
and this fails roche at amad1:/project/inf14w/roche/GEIA_to_netCDF $ Rscript ./netCDF.stats.to.stdout.r netcdf.fp="GEIA_N2O_oceanic.nc" var.name="emi_n2o"
Error in eval(expr, envir, enclos) : object 'GEIA_N2O_oceanic.nc' not found Calls: eval -> eval Execution halted
and this fails roche at amad1:/project/inf14w/roche/GEIA_to_netCDF $ Rscript ./netCDF.stats.to.stdout.r netcdf.fp=./GEIA_N2O_oceanic.nc var.name=emi_n2o
Error in eval(expr, envir, enclos) : object '.' not found Calls: eval -> eval Execution halted
Must the quoting be so strict/brittle, or am I missing something? Also, It Would Be Nice if there was more in the `help(Rscript)` examples about argument passing. I for one found the current examples quite terse and unhelpful. TIA, Tom Roche <Tom_Roche at pobox.com>
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