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Ray Hall's Blog – October 2018 Archive (1)

How to Write an R Function to Match and Merge 2 Files (like VLOOKUP)

Matching and merging 2 files is task I find myself doing all of the time. Historically, I've used VLOOKUP in MS Excel and just worked around any limitations. Finally, I bit the bullet and wrote an R Function that does the trick faster, and with more flexibility. 

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Added by Ray Hall on October 18, 2018 at 9:30am — No Comments

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