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2010 Feb 28
1
Combining 2 columns into 1 column many times in a very large dataset
*Combining 2 columns into 1 column many times in a very large dataset*
The clumsy solutions I am working on are not going to be very fast if I can
get them to work and the true dataset is ~1500 X 45000 so they need to be
efficient. I've searched the R help files and the archives for this list and
have some possible workable solutions for 2) and 3) but not my question 1).
However, I include