Hi all,
I am trying to construct a pairwise coocurrence matrix for certain terms
appearing in a number of documents. For example I have the following table
with binary values showing the presence or absence of a certain term in a
document:
term1 term2 term3 term4 term5 doc1 1 1 0 0 1 doc2 1 1 0 1 1 doc3 1 0 0
0 1
And I want to have a matrix with the number of the pairwise coocurrencies.
So, based on the above table the matrix should be:
term1 term2 term3 term4 term5 term1 0 2 0 1 3 term2 2 0 0 1 2 term3 0 0
0 0 0
term4
1 1 0 0 1
term5
3 2 0 1 1
Any ideas on how to do that?
Tahnks
Tax
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
