toeplitz
Form Symmetric Toeplitz Matrix
Description
Create a symmetric Toeplitz matrix.
Usage
toeplitz(x, ...)
Arguments
| x |
any vector.
|
| ... |
a warning will be given if any other arguments are given.
|
Details
toeplitz returns a symmetric Toeplitz matrix formed from vector x,
where x defines the first row of the matrix and the first column of the matrix.
For the rest of other elements in the matrix, it is always same as the left-upper one.
That is:
A[1, j] = x, for 1 <= j <= length(x)
A[i, 1] = x, for 1 <= i <= length(x)
A[i, j] = A[i-1, j-1], for i>1 and j >1
Value
a symmetric toeplitz matrix which row and column size are same as the length of vector x.
References
See Also
Examples
toeplitz(letters[1:5])
toeplitz(sqrt(1:6))