[R] searching for specific row in matrix

Esmail Bonakdarian esmail.js at gmail.com
Wed Jun 11 15:51:46 CEST 2008

>> # determine which data matches
>> matches <- t(pop) == target  # 't' due to matching in column order
>> # colSums equal to COLS will indicate matches
>> which(colSums(matches) == COLS)

Neat! .. somewhat similar to the solution I came up with in the
meantime, only yours works :-)

Thanks Jim.


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