Creates random subsets of a list of sequences that cover roughly a specified amount of events. The result is only an approximation as the sum of events of the selected sequences in a set may not hard fit the intended size. If possible, the subsets are independent. If not, the command will drop a message.

$USAGE$
<subsetCount> the number of subsets to be created
<subsetSize> the number of events contained in each subset
<inputSequencesName> the name of the collection of sequences of which the subsets are to be created
<outputSequencesName> optional; the name of the collection of sequences into which the resulting subset shall be stored; if left out, the result is stored in the collection identified by <sequencesName>_index

Example(s):
splitSequences 10 3000 someSequences (creates 10 subsets of sequences with 3000 events each)
splitSequences 5 4500 someSequences someNewSequences  (creates 5 subsets of sequences with 4500 events each which will be named someNewSequences_1 to someNewSequences_5)