How do I transform a single colmn list to item matrix in R?

Posted by Indy on Stack Overflow See other posts from Stack Overflow or by Indy
Published on 2012-10-26T22:58:01Z Indexed on 2012/10/26 23:00 UTC
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I currently have data that is in the following format (note, this is 1 column, 4 row matrix):

aa|bb
bb|cc|ee|ee
cc
cc|ee

and I want it displayed so that the column names are: aa, bb, cc, dd, and ee. And I want there to be 4 row such that each row counts the number of times each string was present in the matching row above.

ie)
aa bb cc dd ee
1 1 0 0 0
0 1 1 0 2
0 0 1 0 0
0 0 1 0 1

Does anyone know how to do this in R? I would post my attempt, but it is just getting ugly and complicated. Any help would be much appreciated.

Thanks in advance.

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