Partition::pttl
Developer`PartitionMap::pttl
The second and third arguments in Partition do not have the same length:
Partition[{{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}, {1, 1}, {2}]This shows a valid use of the second and third arguments in Partition:
Partition[{{1, 2, 3}, {4, 5, 6}, {7, 8, 9}}, {1, 1}, {2, 2}]