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Answers and rating deltas for

How do I rename a column in a R dataframe using a vector to indicate the OLD column name?

Author Votes Δ
lukeA 2 +0.73
PhilC 2 +3.06
Zafar 1 -1.02
Mike H. 0 -0.98
Last visited: Jul 20, 2017, 3:06:08 AM