diag2vec {OpenMx} | R Documentation |
Extract Diagonal of a Matrix
Description
Given an input matrix, diag2vec
returns a column vector of the elements along the diagonal.
Usage
diag2vec(x)
Arguments
x |
an input matrix. |
Details
Similar to the function diag
, except that the input argument is always
treated as a matrix (i.e., it doesn't have diag()'s functions of returning an Identity matrix from an nrow specification, nor to return
a matrix wrapped around a diagonal if provided with a vector). To get vector2matrix functionality, call vec2diag
.
See Also
Examples
diag2vec(matrix(1:9, nrow=3))
# [,1]
# [1,] 1
# [2,] 5
# [3,] 9
diag2vec(matrix(1:12, nrow=3, ncol=4))
# [,1]
# [1,] 1
# [2,] 5
# [3,] 9
[Package OpenMx version 2.21.11 Index]