[R] Unique subsetting question

AndrewPage savejarvis at yahoo.com
Wed Sep 22 18:35:19 CEST 2010


I understand how duplicated and unique work for a list where all parts of a
given row are duplicated, or how to find duplicated values if I'm just
looking at that first column, but in this case  the rows for 1954 and 1955
are not completely the same; only quarter 1 is duplicated, so I'm not sure
how to apply either duplicated or unique in that case.

Thanks,
Andrew
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