SIN (version 0.4)

is.blocks: Check variable blocking

Description

This function checks whether a list of vectors defines a valid decomposition of the set of variables into blocks.

Usage

is.blocks(blocks, p)

Arguments

blocks

a list of integer vectors representing a family of subsets of the variable set.

p

the number of variables.

Value

• The function returns TRUE if the block structure is such that each variable is represented in exactly one of the blocks. Otherwise, FALSE is returned.

Examples

p <- 6
blocks <- list(1:3,6,5:4)
is.blocks(blocks, p)
blocks <- list(1:3,7,5:4)
is.blocks(blocks, p)
blocks <- list(1:2,6,5:4)
is.blocks(blocks, p)