On 07/07/17 13:55, θ ” wrote:
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 ?
Look in any first year statistics text for the definition of correlation.
cheers,
Rolf Turner
--
Technical Editor ANZJS
Department of Statistics
University of Auckland
Phone: +64-9-373-7599 ext. 88276
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