matrix.rank: Rank of a square matrix
In matrixcalc: Collection of Functions for Matrix Calculations
matrix.rank R Documentation
Rank of a square matrix
Description
This function returns the rank of a square numeric matrix based on the selected method.
Usage
matrix.rank(x, method = c("qr", "chol"))
Arguments
x
a matrix
method
a character string that specifies the method to be used
Details
If the user specifies "qr" as the method, then the QR decomposition function is used to obtain the rank.
If the user specifies "chol" as the method, the rank is obtained from the attributes of the value returned.
Value
An integer.
Note
If the argument is not a square numeric matrix, then the function presents an error message and stops.
Author(s)
Frederick Novomestky fnovomes@poly.edu
References
Bellman, R. (1987). Matrix Analysis, Second edition, Classics in Applied Mathematics,
Society for Industrial and Applied Mathematics.
See Also
is.square.matrix
Examples
A <- diag( seq( 1, 4, 1 ) )
matrix.rank( A )
B <- matrix( seq( 1, 16, 1 ), nrow=4, byrow=TRUE )
matrix.rank( B )
matrixcalc documentation built on Sept. 15, 2022, 1:05 a.m.
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| matrix.rank | R Documentation |
Rank of a square matrix
Description
This function returns the rank of a square numeric matrix based on the selected method.
Usage
matrix.rank(x, method = c("qr", "chol"))
Arguments
x |
a matrix |
method |
a character string that specifies the method to be used |
Details
If the user specifies "qr" as the method, then the QR decomposition function is used to obtain the rank. If the user specifies "chol" as the method, the rank is obtained from the attributes of the value returned.
Value
An integer.
Note
If the argument is not a square numeric matrix, then the function presents an error message and stops.
Author(s)
Frederick Novomestky fnovomes@poly.edu
References
Bellman, R. (1987). Matrix Analysis, Second edition, Classics in Applied Mathematics, Society for Industrial and Applied Mathematics.
See Also
is.square.matrix
Examples
A <- diag( seq( 1, 4, 1 ) ) matrix.rank( A ) B <- matrix( seq( 1, 16, 1 ), nrow=4, byrow=TRUE ) matrix.rank( B )
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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