Extract Block Indices from Multiblock Object

Retrieves the indices corresponding to a specific block in a multiblock object. These indices can be used to access the corresponding rows or columns in the combined matrix representation.

Usage

# S3 method for class 'multiblock_list'
block_indices(x, i, ...)

Arguments

x

A multiblock object

i

Integer specifying which block's indices to retrieve

...

Additional arguments (not used)

Value

Integer vector of indices for the specified block

See also

Other multiblock functions: multiblock.list(), t.multiblock_list()

Examples

mb <- multiblock(list(matrix(1:10, 5, 2), matrix(11:20, 5, 2)))
block_indices(mb, 1)
#> [1] 1 2
block_indices(mb, 2)
#> [1] 3 4