Where there are ones in the matrix I want the column name to appear and where there are zeros nothing, which would make the vector in this shortened case:
combinations <- ("A B","A C","A E H","A F G","B C D","E G H",A C D E H","A C D F G")
no value A B C D E F G H 1 2 3.095 1 1 0 0 0 0 0 0 2 2 1.687 1 0 1 0 0 0 0 0 46 3 3.470 1 0 0 0 1 0 0 1 47 3 1.563 1 0 0 0 0 1 1 0 50 3 6.234 0 1 1 1 0 0 0 0 148 4 3.663 0 0 1 0 1 0 1 1 151 4 3.470 0 0 0 1 1 1 0 1 177 5 5.411 1 0 1 1 1 0 0 1 178 5 6.829 1 0 1 1 0 1 1 0
Question is how to make this not so manually?
--------------------------------------------- Henrik Andersson Netherlands Institute of Ecology - Centre for Estuarine and Marine Ecology P.O. Box 140 4400 AC Yerseke Phone: +31 113 577473 [EMAIL PROTECTED] http://www.nioo.knaw.nl/ppages/handersson
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