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
Value
An integer.
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.
References
Bellman, R. (1987). Matrix Analysis, Second edition, Classics in Applied Mathematics,
Society for Industrial and Applied Mathematics.