Create an iterator that splits a matrix into block rows

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Description

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

Usage

1

Arguments

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.

Value

An iterator that returns submatrices of x.

See Also

idiv, isplitCols

Examples

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# Split a matrix into submatrices with a maximum of three rows
x <- matrix(1:100, 10)
it <- ihasNext(isplitRows(x, chunkSize=3))
while (hasNext(it)) {
  print(nextElem(it))
}

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