View source: R/MxAlgebraFunctions.R
tr | R Documentation |
This function returns the trace of an n-by-n square matrix x, defined to be the sum of the elements on the main diagonal (the diagonal from the upper left to the lower right).
tr(x)
x |
an input matrix. Must be square |
The input matrix must be square.
vech
, rvectorize
, cvectorize
tr(matrix(1:9, 3, 3))
tr(matrix(1:12, 3, 4))
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