Given a vector;> ab = seq(0.5,1, by=0.1)> ab[1] 0.5 0.6 0.7 0.8 0.9 1.0
The euclidean distance between the vector elements is given by the lower
triangular matrix > dd1 = dist(ab,"euclidean")> dd1 1 2 3 4 52 0.1
3 0.2 0.1 4 0.3 0.2 0.1 5 0.4 0.3 0.2 0.1 6
0.5 0.4 0.3 0.2 0.1
Convert the lower triangular matrix to a full matrix> ddm = as.matrix(dd1)>
ddm 1 2 3 4 5 61 0.0 0.1 0.2 0.3 0.4 0.52 0.1 0.0 0.1 0.2 0.3 0.43
0.2 0.1 0.0 0.1 0.2 0.34 0.3 0.2 0.1 0.0 0.1 0.25 0.4 0.3 0.2 0.1 0.0 0.16 0.5
0.4 0.3 0.2 0.1 0.0
I would be grateful if someone could provide me with a code to convert ddm to
the lower triangular matrix as before i.e. dd1
above.
Your help will be greatly appreciated.JN
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