Nick,
Good question, but just sent to the wrong place. The posting guide asks you
to contact the package maintainer first before posting to r-help only if you
don't hear back. I guess one reason for that is that if questions about all
2000+ packages were sent to r-help, then r-help's traffic
I've recently stumbled across data.table, Matthew Dowle's package. I'm
impressed by the speed of the package in handling operations with large
data.frames, but am a bit overwhelmed with the syntax. I'd like to express
the SQL statement below using data.table operations rather than sqldf (which
was
Note that, in general, you can speed up joins, even within sqldf, by
adding indexes to your tables and ensuring that your select statement
is written in such a way that the indexes are used. See example 4i on
the sqldf home page.
On Wed, Mar 24, 2010 at 4:51 PM, Nick Switanek nswita...@gmail.com
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