Description
Extract or replace the diagonal of a matrix, or construct a diagonal matrix (replace diag function from R-base)
Usage
mydiag(x = 1, nrow, ncol)
Value
If x is a matrix then diag(x) returns the diagonal of x. The resulting vector will have names if the matrix x has matching column and rownames.
Arguments
- x
a matrix, vector or 1D array, or missing.
- nrow
Optional number of rows for the result when x is not a matrix.
- ncol
Optional number of columns for the result when x is not a matrix.