[R] How does findAssocs() calculate the correlation value ??

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hi:

I want to know the math behind the "tm" package findAssocs().

I have found that someone had asked the question before, and have a good explanation by Rick.

¡]http://r.789695.n4.nabble.com/findAssocs-td3845751.html¡^


But I still don't understand how to calculate the correlation value between the two vectors.


For example:

# Correlation word2 with word3

   cor(c(0,1,1,1,1),c(0,0,1,1,1))
   [1] 0.6123724


How does it caculate  cor(c(0,1,1,1,1),c(0,0,1,1,1)) to get 0.6123724 ?


Eva

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