Hi,
what I find a little confusing about your example: If there are several
positions with a REF of, say, 999, why do you not just add them up to a single
position? Because if you have the same position in several rows, than REF is
not a unique identifier for that position. You would need the r
Dear R-help,
I am working on what it seems to be a simple problem, but after several
hours trying to come up with a solution, unfortunately I have not been able
to.
I would like to go from "datain" to "dataout", that is, create the NEWREF
variable according with some restrictions, and update the
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