`dupl.info`

Compact information to construct the duplication matrix

Description

This function provides the minimum information required to create the duplication matrix.

Usage

dupl.info(n = 1, condensed = TRUE)

Arguments

Argument	Description
`n`	order of the duplication matrix.
`condensed`	logical. Information should be returned in compact form?

Details

This function returns a list containing two vectors that represent an element of the duplication matrix and is accesed by the indexes in vectors row and col . This information is used by function dupl.prod to do some operations involving the duplication matrix without forming it. This information also can be obtained using function duplication

Value

A list containing the following elements:

Value	Description
`row`	vector of indexes, each entry represents the row index of the duplication matrix. Only present if `condensed = FALSE`.
`col`	vector of indexes, each entry represents the column index of the duplication matrix.
`order`	order of the duplication matrix.

Examples

z <- dupl.info(n = 3, condensed = FALSE)
z # where are the ones in duplication of order 3?

D3 <- duplication(n = 3, matrix = TRUE)
D3 # only recommended if n is very small

dupl.info