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Hi, I've got a bunch of datasets (each has an "ID" column) that I'd like to merge into one big datasets. After a google search I found http://tolstoy.newcastle.edu.au/R/help/05/08/11131.html . However, I'm wondering if there is an easy way to do this as I've got about 12 datasets to be merged (all in the same format: an "ID" column and a "Frequency"