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February 25, 2016

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Uhm
Sigma <- matrix(c(1, .5, .5, 1), 2)
Will give you
> matrix(c(1, .5, .5, 1),2)
[,1] [,2]
[1,] 1.0 0.5
[2,] 0.5 1.0

rather than
# [,1] [,2]
# [1,] 1.0 0.1
# [2,] 0.1 1.0

or am I missing something?

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