Hello, I need to change a large number of variable names of a dataset. The targeted names are included in another dataset as data. For example, there are two datasets, A and B. The variable names of A are a1 a2 a3. And B has two variables, of which names are b1 and b2. b2 has data: c1, c2, and c3. Then I want to replace a1-3 by c1-3. Could you please help? Thanks in advance.
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