itertools (version 0.1-3)

ichunk: Create a chunking iterator

Description

Create an iterator that issues lists of values from the underlying iterable. This is useful for manually “chunking” values from an iterable.

Usage

ichunk(iterable, chunkSize, mode='list')

Arguments

iterable

Iterable to iterate over.

chunkSize

Maximum number of values from iterable to return in each value issued by the resulting iterator.

mode

Mode of the objects returned by the iterator.

See Also

isplitVector

Examples

# Split the vector 1:10 into "chunks" with a maximum length of three
it <- ihasNext(ichunk(1:10, 3))
while (hasNext(it)) {
  print(unlist(nextElem(it)))
}

# Same as previous, but return integer vectors rather than lists
it <- ihasNext(ichunk(1:10, 3, mode='integer'))
while (hasNext(it)) {
  print(nextElem(it))
}