Users forget how much is an OS service. This is OS X not R being slow.
On a recent Linux box it takes about 90s.
But at least you can easily parallelize it: see ?pvec in package
parallel for one way to do this (and one way not to).
If the file contain a high proportion of duplicates, making a
R 2.15.1
OS X.7.4
Colleagues,
I have a large dataset (27773536 records, the file is several GB) that contains
a column of date / time entries in the format:
"2/1/2011 13:25:01"
I need to convert these to numeric values (ideally in seconds; the origin
[e.g., 1970-01-01] is not impor
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