[datatable-help] data.table on the command line

[statquant3]

I would like to try to use data.table awesomeness on the command line.
The usual use case is that you have a file and you would like to quickly
create a summarized other file.
Sometimes you wouldn't need to start R

Something like (I'm just guessing)

$) DTCMD myfile.csv "[1:5, list(a,b,c=sum(d),e=cumsum(f)),
by=grp][,test:='hello']" > newFile.csv

Would someone have an idea about this ?



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