R: Hankel Matrix

hankel {pracma} | R Documentation

## Hankel Matrix

### Description

Generate Hankel matrix from column and row vector

### Usage

      hankel(a, b)

### Arguments

`a` | vector that will be the first column
`b` | vector that if present will form the last row.

### Details

`hankel(a)` returns the square Hankel matrix whose first column is `a` and whose elements are zero below the secondary diagonal. (I.e.: `b` may be missing.)

`hankel(a, b)` returns a Hankel matrix whose first column is `a` and whose last row is `b`. If the first element of `b` differs from the last element of `a` it is overwritten by this one.

### Value

matrix of size `(length(a), length(b))`

### See Also

`Toeplitz`, `hadamard`

### Examples

    hankel(1:5, 5:1)

[Package pracma version 2.0.4 Index]