Question: would it be better if the contents list of the unzip() function
returned the filenames as character rather than factor since they are
probably unique strings?
> tmp <- unzip(fnam, list=TRUE)
> str(tmp)
'data.frame': 31 obs. of 3 variables:
$ Name : Factor w/ 31 levels "fred1.csv",..: 1 2 3 4 5 6 7 8 9 10 ...
$ Length: num 424486 2664277 219798 442383 480857 ...
$ Date : POSIXct, format: "2012-12-01 04:05:00" "2012-12-02 04:06:00"
"2012-12-03 04:45:00" "2012-12-04 03:52:00" ...
thanks,
Sean
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