tr: Find the trace of a square matrix
In psych: Procedures for Psychological, Psychometric, and Personality Research
tr R Documentation
Find the trace of a square matrix
Description
Hardly worth coding, if it didn't appear in so many formulae in psychometrics, the trace of a (square) matrix is just the sum of the diagonal elements.
Usage
tr(m)
Arguments
m
A square matrix
Details
The tr function is used in various matrix operations and is the sum of the diagonal elements of a matrix.
Value
The sum of the diagonal elements of a square matrix.
i.e. tr(m) <- sum(diag(m)).
Examples
m <- matrix(1:16,ncol=4)
m
tr(m)
psych documentation built on June 27, 2024, 5:07 p.m.
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| tr | R Documentation |
Find the trace of a square matrix
Description
Hardly worth coding, if it didn't appear in so many formulae in psychometrics, the trace of a (square) matrix is just the sum of the diagonal elements.
Usage
tr(m)
Arguments
m |
A square matrix |
Details
The tr function is used in various matrix operations and is the sum of the diagonal elements of a matrix.
Value
The sum of the diagonal elements of a square matrix.
i.e. tr(m) <- sum(diag(m)).
Examples
m <- matrix(1:16,ncol=4)
m
tr(m)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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