How do I generate a variables as below by just entering a number into a function (in this case 5)?
rank DATE OP
1 1 DATE1 OP1
2 2 DATE2 OP2
3 3 DATE3 OP3
4 4 DATE4 OP4
5 5 DATE5 OP5
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Which is the easiest way?
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R question. Generate variables followed by number suffix in dataframe [duplicate]
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