hankel: Hankel Matrix

Description Usage Arguments Details Value See Also Examples

View source: R/hankel.R

Description

Generate Hankel matrix from column and row vector

Usage

1
  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

1
hankel(1:5, 5:1)

Example output

     [,1] [,2] [,3] [,4] [,5]
[1,]    1    2    3    4    5
[2,]    2    3    4    5    4
[3,]    3    4    5    4    3
[4,]    4    5    4    3    2
[5,]    5    4    3    2    1

pracma documentation built on Dec. 11, 2021, 9:57 a.m.