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Answer by Matthew Lundberg for matching numbers in two different data frames

You can specify the common columns to merge, which is what must be done here.merge(x, y, by.x='A', by.y='C', all=TRUE) A B D1 4 1 3442 6 2 5493 9 2 NA4 10 3 2095 15 3 631By default, merge uses the...

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Answer by tmpname12345 for matching numbers in two different data frames

merge(x, y, by.x = "A", by.y = "C", all = TRUE)

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matching numbers in two different data frames

I have two data frames: x contains two columns: A & B:A B4 16 29 210 315 3data frame y contains several columns, of which two of them are of interest in my analysis:C D6 54915 6314 34410 209Note...

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