fBasics: matrix-tr – R documentation

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matrix-tr

Trace of a Matrix

Returns trace of a matrix.

tr(x)

`x`	a numeric matrix.

The function tr computes the trace of a square matrix which is the sum of the diagonal elements of the matrix under consideration.

Golub, van Loan, (1996); Matrix Computations, 3rd edition. Johns Hopkins University Press.

## Create Pascal Matrix:
   P = pascal(3)
   P
  
## Trace:
   tr(P)

Rmetrics - Markets and Basic Statistics

v3042.89.1

GPL (>= 2)

Authors

Diethelm Wuertz [aut], Tobias Setz [cre], Yohan Chalabi [ctb] Martin Maechler [ctb]

Initial release

2017-11-12