convering upper triangular matrix into vector
e.rapsomaniki at mail.cryst.bbk.ac.uk writes:
Hi I have two symmetrical distance matrices and want to compute the correlation coefficient between them (after turning them into vectors). Is there a way of selecting only the upper triangular part of each matrix, then convert this into a vector so I can compute the correlation?
X[upper.tri(X)]
(as help.search("triangular") would have told you soon enough)
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