Strict Half-vectorization
This function returns the strict half-vectorization of an input matrix as a column vector.
vechs(x)
x |
an input matrix. |
The half-vectorization of an input matrix consists of the elements in the lower triangle of the matrix, excluding the elements along the diagonal of the matrix, as a column vector. The column vector is created by traversing the matrix in column-major order.
vechs(matrix(1:9, 3, 3)) vechs(matrix(1:12, 3, 4))
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.