isplitCols: Create an iterator that splits a matrix into block columns
In itertools: Iterator Tools

Description Usage Arguments Value See Also Examples

Create an iterator that splits a matrix into block columns. You can specify either the number of blocks, using the chunks argument, or the maximum size of the blocks, using the chunkSize argument.

1	isplitCols(x, ...)

`x`	Matrix to iterate over.
`...`	Passed as the second and subsequent arguments to `idiv` function. Currently, `idiv` accepts either a value for `chunks` or `chunkSize`.

An iterator that returns submatrices of x.

idiv, isplitRows

# Split a matrix into submatrices with a maximum of three columns
x <- matrix(1:30, 3)
it <- ihasNext(isplitCols(x, chunkSize=3))
while (hasNext(it)) {
  print(nextElem(it))
}

# Split the same matrix into five submatrices
it <- ihasNext(isplitCols(x, chunks=5))
while (hasNext(it)) {
  print(nextElem(it))
}